Class 9

Balbharti Maharashtra State Board Class 9 Political Science Solutions Chapter 4 The United Nations Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Political Science Solutions Chapter 4 The United Nations

Class 9 Political Science Chapter 4 The United Nations Textbook Questions and Answers

1. Choose the right option and rewrite the sentence:

Question 1.
This country is not a permanent member of United Nations Security Council _____.
(a) America
(b) Russia
(c) Germany
(d) China
Answer:
(c) Germany

Question 2.
The United Nations has _______ number of members.
(a) 190
(b) 193
(c) 198
(d) 199
Answer:
(b) 193

Question 3.
This international organisation conducts workshops in India on remedial measures to tackle the problem of malnutrition among children
(a) UNICEF
(b) UNESCO
(c) Trusteeship Council
(d) Red Cross
Answer:
(a) UNICEF

2. Explain with reasons whether the following statements are true or false:

Question 1.
The United Nations General Assembly is a platform to discuss global problems.
Answer:
True.

• Every year the General Assembly meets in its session. During the session, the General Assembly discusses important issues like environment, disarmament, etc.
• The significance of the General Assembly lies in it being a platform for representatives of member nations to come together and discuss and make policy decisions on issues of global importance.

Question 2.
The status of all the member nations of the United Nations is not equal.
Answer:
False.

• As mentioned in the principles of UN, all member nations have the same status.
• There is no discrimination among nations based on geographical size, economic or military power.

Question 3.
A resolution can be passed even if China exercises its veto power.
Answer:
False

• China is one of the five permanent members of the UN and the permanent members have veto power.
• If even one of the five permanent members uses it’s veto i.e. gives a negative vote, the decision cannot be taken.

Question 4.
India has played a major role in the work of the United Nations.
Answer:
True.

• India has always sent her troops to participate in the United Nations peacekeeping forces.
• India has participated in bringing issues like decolonisation, disarmament, racial segregation on the United Nations platform.

3. Explain the following concepts:

Question 1.
Veto
Answer:
(i) Security Council has 5 permanent members and 10 non-permanent members.
(ii) For any decision to be taken, the assent of all five permanent members and four non¬permanent members is necessary.
(iii) America, Russia, England, France and China are permanent members of the Security Council. They have the veto power.
(iv) If even one of the five permanent member uses its veto i.e. gives a negative vote, the decision cannot be taken

Question 2.
UNICEF
Answer:
(i) UNICEF is an affiliated organisation of the United Nations.
(ii) It works towards making nutritious food and health care available to children.
(iii) Several workshops were organised in India to find out measures to overcome malnutrition among babies and children.

4. Answer the following questions in brief:

Question 1.
Write the reasons for the establishment of the United Nations.
Answer:
The United Nations is the world’s largest international organisation. The reasons for the establishment of the United Nations are:

(i) Two World Wars were fought at the beginning of the twentieth century.

(ii) Life and property were destroyed on a large scale in these wars.

(iii) As a result, the League of Nations was established after the First World War and the United Nations was established after the Second World War out of a realisation that there has to be a mechanism to establish world peace.

(iv) The League of Nations did not succeed at all.

(v) But after the use of the nuclear weapons in the . Second World War, the idea took root that such destructive wars should be stopped and that it is the collective responsibility of all nations to do so.

(vi) The United Nations was established after the Second World War to instill this understanding among all nations.

(vii) Hence, the United Nations, an international organisation was established to ensure peace and security at the international level.

Question 2.
Write the objectives of the United Nations.
Answer:
The United Nations has its own definite objectives. They are as follows:

• To establish friendly relations among nations.
• To enhance international security by solving international disputes.
• To safeguard and foster human rights and freedom.
• Along with these, the United Nations also aim at enhancing economic cooperation at the international level.

Question 3.
What is the role of the Peacekeeping Forces of the United Nations?
Answer:
(i) The peacekeeping activity of the United Nations involves creating appropriate circumstances favourable for bringing about permanent peace in strife-tom areas.
(ii) The peacekeeping forces help these areas to progress towards peace.
(iii) In conflict ridden areas, security is provided and at the same time, help is extended for establishing peace.
(iv) The United Nations takes up peacekeeping as one of the tasks for safeguarding and fostering peace in the world.

5. Do as directed:

Question 1.
Complete the following chart giving information about the organs of the United Nations.

Answer:

Question 2.
Show the chronology of the establishment of the United Nations.

Answer:

Question 3.
Complete the following tree diagram about the United Nations.

Answer:

Class 9 Political Science Chapter 4 The United Nations Intext Questions and Answers

Answer the following in brief:

Question 1.
Did India participate in the conferences during the Second World War?
Answer:
India was among the original members of the United Nations that signed the Declaration by United Nations at Washington, D.C. on 1st January, 1942 and also participated in the United Nations Conference on International Organization at San Francisco from 25th April to 26th June 1945.

Question 2.
Which day is celebrated as United Nations day?
Answer:
United Nations was established on 24th October 1945. The day is now celebrated each year . around the world as United Nations Day.

Question 3.
Can the United Nations intervene militarily if there is a serious threat to international peace?
Answer:
The United Nations can’t intervene militarily if there is a serious threat to international peace. The UN, after approval by the Security Council, sends peacekeepers to regions where armed conflict has recently ceased or stalled to enforce the terms of peace agreements and to discourage combatants from resuming hostilities.

Question 4.
What steps have the United Nations taken to foster human rights and freedom?
Answer:
One of the UN’s primary purposes is to promote and encourage respect for human rights and to ensure fundamental freedoms for all without distinction on the basis of race, sex, language, or religion. In 1948, the General Assembly adopted a Universal Declaration of Human Rights. In 1979, the General Assembly adopted the Convention on the Elimination of All Forms of Discrimination against Women, followed by the Convention on the Rights of the Child, in 1989. United Nations Commission on Human Rights was formed in 1993 to oversee human rights issues for the UN.

Question 5.
Only one Indian has so far been the President of the UN General Assembly. Who is that person? When and at which session?
Answer:
Mrs. Vijayalakshmi Pandit is the only Indian so far who has been the President of the UN General Assembly, at the eighth session in 1953.

Activity:

Question 1.
Write the names of United Nations Secretary Generals until now.
Answer:
(i) Mr. Trygve Lie
(ii) Mr. Dag Hammarskjold
(iii) Mr. U. Thant
(iv) Mr. Kurt Waldheim
(v) Mr. Javier Perez de Cuellar
(vi) Mr. Boutros Boutros Ghali
(vii) Mr. Kofi Annan
(viii) Mr. Ban Ki Moon
(ix) Mr. Antonio Guterres

Question 2.
Is it necessary that the Secretary-General should be a citizen of the great powers/the big five?
Answer:
It is not necessary that the Secretary General should be a citizen of one of the great powers/ the big five. Here is the list of Secretary Generals with their countries: Mr. Trygve Lie (Norway) Mr. Dag Hammarskjold (Sweden)

• Mr. U. Thant (Mayanmar)
• Mr. Kurt Waldheim (Austria)
• Mr. Javier Perez de Cuellar (Peru)
• Mr. Boutros Boutros Ghali (Egypt)
• Mr. Kofi Annan (Ghana)
• Mr. Ban Ki Moon (South Korea)
• Mr. Antonio Guterres (Portugal)

Question 3.
Are citizens of a particular country given priority for being Secretary-General?
Answer:
The citizens of no particular country are given priority for being Secretary General.

Question 4.
Who is the current Secretary General and which country does he belong to?
Answer:
The current Secretary General is Antonio Guterres and he belongs to Portugal.

Class 9 Political Science Chapter 4 The United Nations Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
The United Nations Organisation was founded on _______.
(a) August 9,1944
(b) October 24,1944
(c) October 24,1945
(d) December 10,1945
Answer:
(c) October 24,1945

Question 2.
The United Nations has ____ main organs.
(a) four
(b) five
(c) six
(d) seven
Answer:
(c) six

Question 3.
The United Nations has ______ official languages.
(a) four
(b) five
(c)six
(d) three
Answer:
(c)six

Question 4.
This language is not an official language of the United Nations
(a) French
(b) Spanish
(c) Arabic
(d) Italian
Answer:
(d) Italian

Question 5.
There are ______ permanent members in the Security Council.
(a) four
(b) five
(c)six
(d) seven
Answer:
(b) five

Question 6.
There are ________ non-permanent members in the Security Council.
(a) ten
(b) five
(c) fifteen
(d) seven
Answer:
(a) ten

Question 7.
The term of a non-permanent member of the Security Council is of ______.
(a) four years
(b) five years
(c) two years
(d) one year
Answer:
(c) two years

Question 8.
Which organ of the United Nations has suspended its operations since 1994?
(a) Trusteeship Council
(b) Economic and Social Council
(c) Secretariat
(d) International Court of Justice
Answer:
(a) Trusteeship Council

Question 9.
How many Judges are there in the International Court of Justice?
(a) 9
(b) 10
(c) 12
(d) 15
Answer:
(d) 15

Question 10.
What is the term of the United Nations Secretary General?
(a) 3 years
(b) 4 years
(c) 6 years
(d) 5 years
Answer:
(d) 5 years

Question 11.
UN Secretary General heads which principal organ of the United Nations Organisation?.
(a) General Assembly
(b) Security Council
(c) Economic and Social Council
(d) The Secretariat
Answer:
(d) The Secretariat

Question 12.
What is the term of a judge of the International Court of Justice?
(a) 9 years
(b) 4 years
(c) 6 years
(d) 5 years
Answer:
(a) 9 years

Question 13.
How many members does the Economic and Social Council have?
(a) 33
(b) 40
(c) 15
(d) 54
Answer:
(d) 54

Give the full forms of the following acronyms:

Question 1.
ILO:
Answer:
International Labour Organisation

Question 2.
FAO:
Answer:
Food and Agriculture Organisation

Question 3.
WHO:
Answer:
World Health Organisation

Question 4.
WB:
Answer:
World Bank

Question 5.
IMF:
Answer:
International Monetary Fund

Question 6.
UNICEF:
Answer:
United Nations Children’s Fund

Question 7.
UNESCO:
Answer:
United Nations Educational, Scientific and Cultural Organisation

State whether the following statements are true or false with reasons:

Question 1.
UNICEF is the main organ of UN.
Answer:
False.
(i) The United Nations has six main organs:

1. General Assembly
2. Security Council
3. Economic and Social Council
4. International Court of Justice
5. Trusteeship Council and
6. Secretariat.

(ii) UNICEF is an affiliated organisation of the United Nations. It works towards making nutritious food and health care available to children.

Explain the following concepts:

Question 1.
Millennium Development Goals
Answer:
The United Nations member nations came together in 2000 and decided upon the development goals for the new millennium. Some of the important goals are as follows:

• To eliminate poverty and hunger.
• To make the facilities of primary education available.
• To bring about women’s empowerment, reduce infant mortality rate.
• To take special care of the health of pregnant women.
• To fight diseases like AIDS, malaria, etc.
• To protect the environment and increase the cooperation between developed and developing countries.

Question 2.
International Criminal Court
Answer:
(i) The International Criminal Court is an inter-governmental organisation and an international tribunal.
(ii) Its headquarters are at The Hague in the Netherlands.
(iii) The International Criminal Court has the jurisdiction to prosecute individuals for international crimes of genocide, crimes against humanity and war crimes that are of concern to the international community.

Question 3.
International Court of Justice.
Answer:
(i) International Court of Justice means the judicial branch of the United Nations. The International Court of Justice is located at The Hague in the Netherlands.
(ii) There are 15 judges in the International Court of Justice.
(iii) They are chosen by the General Assembly and the Security Council. Every judge has tenure of nine years.
(iv) Functions:

• To settle the disputes between two or more member nations of the United Nations.
• To interpret international law authentically.
• To advise the various organs or subsidiary bodies of the United Nations about legal issues.

Question 4.
The UN Security Council.
Answer:
Security Council is one of the 6 main organs of the UN:

(i) There are 15 members in the Security Council. Of them, five are permanent members, while ten are non-permanent members.

(ii) The non-permanent members are chosen every two years by the General Assembly. America, Russia, England, France and China are permanent members of the Security Council. They have the veto power.

(iii) For any decision to be taken, the assent of all five permanent members and four non permanent members is necessary. If even one of the five permanent member uses his veto i.e. gives a negative vote, the decision cannot be taken.

(iv) Functions of the Security Council:

(a) The main responsibility of the Security Council is to maintain international peace and security.
The Security Council may suggest one among the following alternatives in situations of international conflict:

• End/resolve conflict and make efforts to establish peace
• Impose economic sanctions or take a decision of military action against the aggressor nation.

(b) To prepare policies for arms control.
(c) To play a joint role along with the General Assembly in the appointments of the judges of the International Court of Justice and of the United Nations Secretary General.

Complete the following table:

Question 1.

Answer:

Question 2.

Answer:

Complete the flow chart:

Question 1.

Answer:

Complete the chart:

Question 1.

Answer:

Question 2.

Answer:

Answer the following in brief:

Question 1.
State the role of UN General Assembly as platform to discuss global problems.
Answer:
The United Nations General Assembly is a platform to discuss global problems because:

• Every year the General Assembly meets in its session from September to December.
• During the session, the General Assembly discusses important issues like environment, disarmament, etc
• The decisions in the General Assembly are taken by the majority. These decisions are in the form of resolutions.
• The significance of the General Assembly lies in being a platform for representatives of member nations to come together and discuss and make policy decisions on issues of global importance.

Question 2.
United Nations plays an important role in preservation of peace. Explain the statement.
Answer:
(i) The objective of the United Nations is to settle international conflict peacefully.

(ii) The United Nations Charter lays down the ways and means to be employed to achieve this goal.

(iii) It includes appointing an intermediary acceptable to the nations involved in the conflict, use the legal procedure, appoint an arbitrator to solve the dispute and if needed, to take recourse to military means and ensure that conflict will not occur again.

(iv) In modem times, human security has been threatened by terrorism, racist and religious conflict. As a result, the function of securing peace of the United Nations has acquired a lot of importance.

(v) The United Nations makes efforts to ensure that violence does not erupt in strife-tom areas and normalcy is restored as soon as possible, by (for example), starting schools, creating awareness among the people about human rights, making social, economic, political facilities available, conducting elections, etc.

Question 3.
How had India helped to solve international conflicts peacefully?
Answer:
(i) India had participated in the different Conferences that were held before the establishment of the United Nations.

(ii) India has participated in bringing issues like decolonisation, disarmament and racial segregation on the United Nations platform.

(iii) In 1946, India was the first country to raise . the question of racism in the United Nations.India has always led the discussions about the problems of undeveloped and developing countries.

(iv) India has always sent her troops to participate in the United Nations peacekeeping forces. Not just that, India has sent an all-woman peacekeeping force as well.

(v) It is evident from the foregoing analysis that India makes serious efforts to solve international conflicts by peaceful means.

Question 4.
What is the role of UNESCO?
Answer:
UNESCO, is an affiliated organisation of the United Nations works towards peace and security in the world by promoting cooperation between member countries in the fields of education, science and culture.

Question 5.
What are the principles of the United Nations?
Answer:
The United Nations is an organisation created by the coming together of sovereign nations. Naturally, it is based on certain principles or rules. They are as follows:

• All member nations will have the same status. There is no discrimination among nations based on geographical size, economic or military power.
• All member nations of the United Nations should respect the freedom and geographical unity of other member nations.
• All member nations should solve their international disputes and mutual issues peacefully.

Question 6.
What are the functions of the General Assembly?
Answer:
The United Nations General Assembly is a platform to discuss global problems. Functions of General Assembly are:

• To elect the non-permanent members of the Security Council.
• To choose the United Nations Secretary General and the judges of the International Court of Justice (ICJ) in consultation with the Security Council.
• To pass the annual budget of the United Nations.

Question 7.
What are the specialised agencies of UN?
Answer:
(i) Apart from these six major organs, there are many affiliated organisations of the United Nations that help it in its functions. They are called specialised agencies.

(ii) Working in specific areas, they help different nations in those areas.

(iii) The following are some of these important agencies:

• International Labour Organisation (ILO)
• Food and Agriculture Organisation (FAO)
• World Health Organisation (WHO)
• World Bank (WB)
• International Monetary Fund (IMF)
• United Nations Children’s Fund (UNICEF)
• United Nations Educational, Scientific and Cultural Organisation (UNESCO)

Question 8.
Why was the Trusteeship Council setup and why has it suspended its operations?
Answer:
(i) After the Second World War, the territories that were undeveloped were placed under the responsibility of the developed nations.

(ii) The latter were supposed to help bring about the development of the trust territories and once they attain independence from their colonies, help establish democracy.

(iii) The work of the Trusteeship Council is over as there are no trust territories left.

(iv) The work of the Trusteeship Council ended when Palau got independence on 1st November 1994.

Question 9.
Write about the phases in establishment of the United Nations.
Answer:
The United Nations is an international organisation of sovereign nations. It was established in the following manner:

(i) The Atlantic Treaty was signed between Prime Minister of England, Sir Winston Churchill and American, President Franklin D Roosevelt during the Second World War on 14th August 1941.

(ii) According to this treaty, a decision was taken to set up a permanent mechanism to establish international security after the Second World War was over.

(iii) Detailed discussions followed on this decision in two conferences among allied powers in 1944 and 1945.

(iv) A draft of the treaty to establish an international organisation was prepared.

(v) At San Francisco in America, representatives of fifty countries drafted the Charter of the United Nations after discussions.

(vi) As soon as the war was over, the Charter was signed on 24th October, 1945 and the United Nations was established.

Question 10.
Explain the characteristics of the Economic and Social Council.
Answer:
Economic and Social Council:

(i) The main objective of this organisation is to coordinate the economic and social policies of the United Nations.
(ii) The Council has 54 members. They are selected by the General Assembly.
(iii) Each member has a tenure of three years and each year, one-third of the members are newly chosen. Decisions are taken by majority vote.
(iv) Functions:

•  Initiate discussions at the global level on issues like poverty, unemployment, economic and social inequality and suggest policies to tackle these problems.
• Discuss issues like women’s questions, empowerment of women, human rights, fundamental freedoms, global trade, health related issues, etc. and make decisions.
• Make efforts to establish cultural and educational cooperation at the international level.
• Coordinate the functioning of the different organisations working in association with the United Nations.

Activity:

Question 1.
Name the UN Secretary-General who later on became the President of his country.
Answer:
Mr. Kurt Waldheim of Austria.

Question 2.
Name the UN Secretary-General who died in an air-crash.
Answer:
Dag Hammarskjold of Sweden, died on September 18, 1961, during a Congo Mission.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 8 Industry and Trade Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 8 Industry and Trade

Class 9 History Chapter 8 Industry and Trade Textbook Questions and Answers

1A. Choose the right option and rewrite the sentence:

Question 1.
In 1948, Industrial Finance Corporation of India was formed for ________.
(a) better development of the industrial sector
(b) making available long term loans to industrial projects
(c) generating employment
(d) determining the quality of finished goods
Answer:
(b) making available long term loans to industrial projects

Question 2.
industry in India is called the _____.
‘Sunrise Sector’.
(a) Jute
(b) Automobile
(c) Cement
(d) Khadi and village industries
Answer:
(b) Automobile

Question 3.
The major responsibility of the textiles committee is ________.
(a) Production of cloth
(b) Determining the quality standards of cloth
(c) Export of cloth
(d) Generate employment for people
Answer:
(b) Determining the quality standards of cloth

Question 4.
__________ is the major Indian city in the production of bicycles.
(a) Mumbai
(b) Ludhiana
(c) Cochin
(d) Calcutta
Answer:
(b) Ludhiana

B. Identify the wrong pair and rewrite the corrected one:

Question 1.
(1) Industrial Finance Corporation of India – makes long term loans available for industrial projects.
(2) Industrial Development Corporation – development of the industrial sector.
(3) Textiles Committee – the welfare of weavers.
(4) Khadi and Village Industries Commission – promotion of industrialization in rural areas
Answer:
Wrong Pair: Textiles Committee – the welfare of weavers.

Question 2.
(1) Bicycle – Ludhiana
(2) Seribiotic Research Laboratory – Nagpur
(3) Tractor Export – Africa
(4) Port for Trade – Mumbai.
Answer:
Wrong Pair: Seribiotic Research Laboratory -Nagpur.

2A. Create a concept picture based on the chapter:

Question 1.
Industries in India.
Answer:

Question 2.
India’s imports and exports or foreign trade.
Answer:

B. Explain the following concept:

Question 1.
Internal trade of India.
Answer:
(i) India’s internal trade takes place through railways, waterways, roads, airways, etc. Ports like Mumbai, Kolkata, Cochin and Chennai are important.
(ii) Commodities like coal, cotton, cotton textiles, rice, wheat, raw jute, iron, steel, oilseeds, salt, sugar, etc. are included in internal trade.
(iii) Due to the development of industries, the standard of life in the country improves.
(iv) Many opportunities for employment become available. On the whole, it helps in the progress of the country.

3A. Explain with reasons:

Question 1.
The tourism industry has developed to a great extent in India.
Answer:
(i) India has a rich cultural heritage. There are places of worship of different religions, pilgrimage centers, confluences of rivers, forts, caves, etc. all over our country.

(ii) Tourists from our country as well as from abroad travel in India throughout the year.

(iii) The facilities for tourists to stay, travel, etc. are provided through the Tourism Development Corporation. Sale of curios and the hotel industry thrives in tourist places. In some places, there are guides who give information to tourists about that area.

(iv) Sometimes when vehicles don’t reach the destination in some remote areas and difficult to reach tourist places, the local people help the tourists in return for a fee.

(v) Employment opportunities are generated out of these needs. Thus, the tourism industry has developed a lot in India.

Question 2.
The quality of life and standard of living of Indian citizens is increasing.
Answer:
(i) After India became independent, the Industrial Finance Corporation of India was established in 1948 to make available long term loans to Industrial projects.

(ii) The Industrial Development Corporation was established in 1954 in order to bring about greater development of the industrial sector.

(iii) Due to the development of industries, many opportunities for employment become available.

(iv) On the whole, it helps in the progress of the country.

(v) Thus the standard of life in the country improves.

B. Write the answer in 25 to 30 words:

Question 1.
What efforts are made by our government to promote agricultural industries?
Answer:
The following efforts are made by our Government to promote agriculture and industries:

(i) To encourage farming, loans are given to farmers through rural banks and cooperative institutions.

(ii) Study visits, agricultural outdoor trips and farmers’ get-togethers are organised through the Panchayat Samitis to bring about improvements in agriculture.

(iii) Tools and implements, seeds and fertilisers are also supplied. The farmers are given training regarding soil testing, nursery of fruit plants, pisciculture, poultry, cattle and goat rearing, dairy farming, etc.

(iv) Guidance is given to farmers by a district level training institute. Financial help is given to build warehouses for storing the farm produce.

Question 2.
How is employment generated in the tourism sector?
Answer:
(i) The facilities for tourists to stay, travel, etc. are provided through the Tourism Development Corporation.
(ii) Sale of curios and the hotel industry thrives in tourist places.
(iii) In some places, there are guides who give information to tourists about that area.
(iv) Sometimes when vehicles don’t reach the destination in some remote areas and difficult to reach tourist places, the local people help the tourists in return for a fee.
Thus, employment opportunities are generated out of these needs.

Question 3.
Which industries in India are based on forests?
Answer:
(i) Government has reserved some forests for the industries based on forests.
(ii) The task of conservation of the forests is done by the Central government, the State government, and by the local people.
(iii) Forests are necessary for the raw material for industries like construction, paper, newsprint, silk, matchboxes, medicinal herbs, honey, lacquer, and raw material needed for paint.

Question 4.
Write a short note on the leather industry in India.
Answer:
(i) It is a big industry in India. It is primarily export-oriented.
(ii) The Council for Leather Export is the main trade promotion organization for Indian leather Industry.
(iii) The Indian leather industry contributes almost 13% of world’s leather production.
(iv) India is the second largest producer of footwear and leather garments in the world.

4. Complete the table:

Question 1.

Answer:

Class 9 History Chapter 8 Industry and Trade Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
Market mechanisms like ______ enables the craftsmen from rural and urban areas to get a market for their wares.
(a) Dilli Haat
(b) Mumbai Market
(c) Handloom Emporium
(d) Handicraft Expo.
Answer:
(a) Dilli Haat

Question 2.
The textile industry forms ______ % of the total industrial production.
(a) 17
(b) 14
(c) 16
(d) 15
Answer:
(b) 14

Question 3.
________ industry functions under the Ministry of Textiles.
(a) Automobile
(b) Cement
(c) Leather
(d) Silk
Answer:
(d) Silk

Question 4.
_______ is a scheme that helps weavers through self-finance groups and nongovernmental organisations.
(a) MNREGA
(b) Employment Generation Program
(c) Swarnajayanti Gram Swarojgar Yojana
(d) Mega Cluster
Answer:
(d) Mega Cluster

Question 5.
Industrial Finance Corporation of India was established in _______.
(a) 1948
(b) 1949
(c) 1951
(d) 1991
Answer:
(a) 1948

Question 6.
Industrial Development Corporation was established in ________.
(a) 1955
(b) 1956
(c) 1957
(d)1954
Answer:
(d)1954

Question 7.
Textile Committee Act was passed in ________.
(a)1961
(b) 1960
(c) 1963
(d) 1964
Answer:
(c) 1963

Question 8.
Industrial Licensing Policy was formulated in _______.
(а) 1970
(b) 1980
(c)1990
(d) 1991
Answer:
(а) 1970

Identify and write the wrong pair in the following sets:

Question 1.
(1) Industrial Licensing policy – 1970
(2) Textile Committee Act – 1963
(3) Industrial Finance Corporation of India – 1948
(4) Industrial Development Corporation – 1958
Answer:
Wrong Pair: Industrial Development Corporation -1958.

Question 2.
(1) Mega cluster – Welfare scheme for weavers.
(2) Dilli Haat – Enables the craftsmen to get a market
(3) Cement Industry – Sunrise sector
(4) Leather Industry – Export Oriented
Answer:
Wrong Pair: Cement Industry – Sunrise sector.

Question 3.
(1) Hand Sculpting – labour intensive
(2) Silk Industry – Ministry of textiles
(3) Khadi and Village Industry Commission – Fourth five year plan
(4) Tourism Development Corporation – facilities for tourist
Answer:
Wrong Pair: Khadi and Village Industry Commission -Fourth five year plan

Do as Directed:

Question 1.
Arrange the following in chronological order:
(i) Textile Committee Act
(ii) Industrial Finance Corporation of India was established
(iii) Industrial Licensing Policy
(iv) Industrial Development Corporation was established
Answer:
(i) Industrial Finance Corporation of India was established in 1948
(ii) Industrial Development Corporation was established in 1954
(iii) Textile Committee Act 1963
(iv) Industrial Licensing Policy of 1970

Write short notes on:

Question 1.
Hand sculpting Industry.
Answer:
(i) This is a labour intensive craft.
(ii) Sculptors got employment due to the capacity of the craft to absorb more craftsmen, small investment, more profits, preference to exports and possibility of earning more foreign exchange.
(iii) Several cities have market mechanisms like ‘Dilli Haat’ which enables the craftsmen from rural and urban areas to get a market for their wares.

Question 2.
‘Mega cluster’ scheme and Jute Industry.
Answer:
(i) ‘Mega cluster’ is a scheme that helps weavers through self-finance groups and non-governmental organisations.
(ii) Help is given in the form of raw material, design banks, development of technology and welfare of the weavers.
(iii) India is the top ranking country in jute production. India is a major exporter of jute products.
(iv) We get cloth, sack cloth and ropes from jute.

Question 3.
Cement Industry.
Answer:
(i) The role of cement industry is important in the development of housing and infrastructure.
(ii) This industry is one of the most technologically advanced. India is currently an important producer of cement in the world.

Question 4.
Salt and Bicycle industry.
Answer:
(i) India is one of the top producers of salt in the world.
(ii) The annual production of salt in India is 200 lakh tons.
(iii) The production of iodised salt is 60 lakh tons.
(iv) India is a leading producer of bicycles in the world.
(v) Bicycles are made in the states of Punjab and Tamil Nadu.
(vi) The main centre of bicycle manufacturing in India is Ludhiana.
(vii) India exports bicycles to countries like Nigeria, Mexico, Kenya, Uganda and Brazil.

Question 5.
Mineral wealth and fisheries.
Answer:
(i) The availability of the minerals, iron and coal plays a major role in the industrial development of the country.
(ii) We have adequate stores of iron, manganese, coal and mineral oil in our country.
(iii) Fisheries include sea water fish and fresh water fish found in rivers, canals, ponds and lakes.
(iv) Harbours have been built or old harbours have been redeveloped, fish seed incubation centres and fishing industry training centres have been provided for the growth of this industry.

Question 6.
Khadi and Village Industries Commission.
Answer:
(i) The Khadi and Village Industries Commission was established to give impetus to industrialisation in rural areas.
(ii) The main objectives behind the establishment of the corporation were to develop the traditional industries, handicrafts, cottage industries and to encourage industries that use the material and human resources available at the local level and make the villages self-reliant by creating employment there.

Explain the statements with reason:

Question 1.
Agriculture fulfills man’s basic needs.
Answer:
(i) The major occupation in India is agriculture and other tasks based on agriculture.
(ii) Many varieties of crops are grown. Jowar, wheat, rice, pulses and oilseeds are mainly produced.
(iii) Agriculture also includes the production of fruits and vegetables. Nowadays, industries processing these fruits and vegetables have come up.
(iv) Thus, Agriculture fulfills man’s basic needs.

Read the following passage and answer the questions.

Forest resources: The government has reserved some forests for the industries based on forests. The task of conservation of the forests is done by the Central government, the State government, and by the local, people. Forests are necessary for the raw material for industries like construction, paper, newsprint, silk, matchboxes, medicinal herbs, honey lacquer, and raw material needed for paint.
Fisheries: Fisheries include seawater fish and fresh i water fish found in rivers, canals, ponds, and lakes.
Tourism: India has a rich cultural heritage. There are places of worship of different religions, pilgrimage centers, confluences of rivers, forts, caves, etc. all over our country. Tourists from our country as well as from abroad travel in India throughout the year.
The facilities for tourists to stay, travel, etc. are, provided through the Tourism Development Corporation. The sale of curios and the hotel industry thrives in tourist places. In some places, there are guides who give information, to tourists about that area. Sometimes when vehicles, don’t reach the destination in some remote and difficult to reach tourist places, the local people help the tourists in return for a fee. Employment, opportunities are generated out of these needs.

Question 1.
Name a few industries which depend upon forest resources for their production.
Answer:
A few industries which depend upon forest resources are – construction, newsprint, paper and silk industry. Even lacquer is required to paint and coat furniture, honey and herbs for medicinal use.

Question 2.
Do you think Tourism is an industry? How has this industry prospered in India so far?
Answer:
Yes, tourism is an industry. India attracts a lot of foreign tourists every year as it is a home of many pilgrimage places, has a confluence of rivers, scenic landscapes and historical monuments. The Tourism Development Corporation provides all facilities of stay and travel in India. Not just the guides but also local people of the tourist spots help the tourists to reach difficult destinations with ease. The sale of curios and the hotel industry thrives in tourist places. Hence India’s tourism is prospering at a fast pace.

Question 3.
Do you agree that cross-border terrorism in Kashmir has affected tourism in this region? what can be done to protect tourism there?
Answer:
It is true that cross-border terrorism has affected tourism in the Kashmir region. I think the following are a few measures which can ensure protection of tourists:

(i) The army and other paramilitary forces should become more tourist – friendly and convince them to refrain from visiting terror-prone areas.

(ii) Bilateral talks at the governmental level can also play a vital role in preventing unpleasant experiences for the tourists.

(iii) During skirmishes or conflicts of any kind, the tourists should be restricted from visiting the valley. Those already stuck in the regions during sudden eruption of violence must be given a safe passage with priority.

Answer the following questions in detail:

Question 1.
Explain Agriculture in India.
Answer:
(i) Agriculture, in India, is practised using traditional and modern methods. Tasks are performed using bullocks as well as machines.

(ii) Seventy percent of Indian society depends upon jobs related to agriculture and agricultural production.

(iii) Agriculture and animal husbandry are practised in villages. In this industry the participation of women is equal to that of men.

(iv) Variety of crops like jowar, wheat, rice, pulses and oilseeds, cotton and sugarcane are produced in India.

(v) To encourage farming, loans are given to farmers through rural banks and cooperative institutions.

(vi) Study visits, agricultural outdoor trips and farmers’ get-togethers are organised through the Panchayat Samitis to bring about improvements in agriculture.

(vii) Tools and implements, seeds and fertilisers are also supplied. The farmers are given training regarding soil testing, nursery of fruit plants, pisciculture, poultry, cattle and goat rearing, dairy farming, etc.

(viii) Guidance is given to farmers by a district level training institute. Financial help is given to build warehouses for storing the farm produce.

(ix) Modern techniques like drip irrigation, organic farming are used for farming.

Question 2.
Industries in India.
Answer:
(i) Textile industry: The textile industry forms 14% of the total industrial production.
It includes the powerloom and the handloom industries. The handloom industries are labour-intensive. According to the ‘Textile Committee Act 1963’, a Textile Committee has been established. This committee sets the quality standards for textiles manufactured for sale in the internal market as well as for export.

(ii) Silk industry: This industry functions under the Ministry of Textiles. The research about the species of the silkworm and mulberry trees is done in the Seribiotic Research Laboratory at Bengaluru. This industry is primarily in the States of Karnataka, Andhra Pradesh, West Bengal, Jammu and Kashmir. Now it is being spread in states with predominantly tribal populations.

(iii) Jute industry: India is the top ranking country in jute production. India is a major exporter of jute products. We get cloth, sack cloth and ropes from jute.

(iv) Hand sculpting: This is a labour intensive craft. Sculptors got employment due to the capacity of the craft to absorb more craftsmen, small investment, more profits, preference to exports and possibility of earning more foreign exchange. Several cities have market mechanisms like ‘Dilli Haat’ which enables the craftsmen from rural and urban areas to get a market for their wares.

(v) Automobile industry: India is one of the major producers of vehicles. Vehicles are exported to 40 countries from India. The automobile industry is called the ‘sunrise sector’ in India. India’s tractor industry is the biggest in the world. One third of the tractors manufactured world-wide are produced in India. Tractors manufactured in India are exported to Turkey, Malaysia and several countries in Africa.

(vi) Cement industry: The role of cement industry is important in the development of housing and infrastructure. This industry is one of the most technologically advanced. India is currently an important producer of cement in the world.

(vii) Leather industry: It is a big industry in India. It is primarily export oriented.

(viii) Salt industry: India is one of the top producers of salt in the world. The annual production of salt in India is 200 lakh tons. The production of iodised salt is 60 lakh tons.

(ix) Bicycle industry: India is a leading producer of bicycles in the world. Bicycles are made in the States of Punjab and Tamil Nadu. The main centre of bicycle manufacturing in India is Ludhiana. India exports bicycles to countries like Nigeria, Mexico, Kenya, Uganda and Brazil.

(x) Khadi and village industry: The Khadi and Village Industries Commission was established to give impetus to industrialization in rural areas. The main objectives behind the establishment of the corporation were to develop the traditional industries, handicrafts, cottage industries and to encourage industries that use the material and human resources available at the local level and make the villages self-reliant by creating employment there.

Question 3.
India’s imports and exports or foreign trade.
Answer:
(i) When planning started in 1951, import of industrial goods and raw material was required for increasing the production.
(ii) India’s imports included machines, iron, mineral oil, fertilisers, medicines, etc.
(iii) India also gave impetus to exports after independence in order to gain valuable foreign exchange.
(iv) India’s exports included tea, coffee, spices, cotton textiles, leather, footwear, pearls, precious stones, etc.

Question 4.
Explain the policy of the Central Government.
Answer:
(i) In the fourth five year plan, focus was placed on paper industry, pharmaceutical industry, motor-tractor industry, leather goods, textile industry, food processing industry, oil, colour, sugar industries, etc.

(ii) According to the Industrial Licensing Policy of 1970, all those factories requiring an investment of more than 5 crore rupees were to be included as heavy industries.

(iii) The big industrial houses and foreign companies were allowed to invest in heavy industries that were not reserved for the public sector.

(iv) As a result of this policy, by the end of 1972,3 lakh 18 thousand small industries were registered with the government registration office.

Question 5.
Write a note on Silk Industry.
Answer:
(i) The silk industry functions under the Ministry of Textiles.
(ii) The research about the species of the silkworm and mulberry trees is done in the Seribiotic Research Laboratory at Bengaluru.
(iii) This industry is primarily in the States of Karnataka, Andhra Pradesh, West Bengal and Jammu and Kashmir.
(iv) Now it is being spread in States with predominantly tribal populations.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 8 Introduction to Economics Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 8 Introduction to Economics

Class 9 Geography Chapter 8 Introduction to Economics Textbook Questions and Answers

1. Explain the types of economies by filling correct information in the place of questions in the circle.

Answer:

2. Give an explanation:

Question 1.
The economy begins at home.
Answer:

• Household finance is related to income and expenditure.
• Every household has unlimited expenditure and the income earned is limited.
• The household has to make a choice regarding how it has to spend its limited resources.
• Management of this limited income to meet the unlimited expenses is Economics.
• As we manage the finance of our family, similarly the villages/cities, states, countries and the whole world needs to have economic management. So we say Economy begins at home.

Question 2.
India’s economy is of mixed type.
Answer:

• Mixed economy is a combination of Capitalism and Socialism.
• India is said to be a Mixed economy because there is a co-existence of both public and the private sectors.
• The private sector undertakes production for the profit motive, whereas the state tries to achieve social welfare.
• India, therefore, tries to achieve a balance between maximum social welfare for its citizens on one hand and profit on the other. Therefore, India’s economy is of Mixed type.

Question 3.
On the basis of economies, we can divide countries into three groups.
Answer:
The activities related to the production, distribution and consumption of goods and services in a specific region is called economy. On the basis of economies, countries are divided into three groups. Capitalist Economy, Socialist Economy and Mixed Economy.

1. Capitalistic Economy is a kind of economy in which the means of production is in the hands of the private sector, e.g. Germany, Japan, the U.S.A.
2. Socialist Economy is a kind of economy in which the means of production belongs to the society i.e. the government’s control, e.g. China, Russia.
3. Mixed Economy is a kind of economy in which there is a co-existence of both private and public sectors, e.g. India, Sweden, the U.K.

3. Write the following questions in one line:

Question 1.
To which economic factor is the management of individual or family finances related?
Answer:
Management of individual or family finances is related to the economic factor of ‘income and expenditure.

Question 2.
From which Greek word is the term ‘Economics’ derived?
Answer:
The word ‘Economics’ is derived from the Greek word ‘Oikonomia’ which means family management.

Question 3.
In a capitalistic economy, to whom does the ownership and management of means of production belong?
Answer:
In a Capitalistic Economy, the ownership and management of means of production belong to the private sector.

Question 4.
What do you mean by globalisation?
Answer:
Globalisation means aligning the country’s economy with the world economy.

Class 9 Geography Chapter 8 Introduction to Economics Intext Questions and Answers

Can you tell?
Suppose this is your expenditure this month and your monthly income is? 20,000. To strike a balance between your income and your expenditure, decide that will be your preferences for expenditure.

Rewrite the table according to your preferences and discuss in class.

Answer:
Income And Expenditure Statement

• Preferences have been rearranged to their urgency.
• Most urgent wants are placed on the top. Least urgent wants are placed at the bottom.
• Expenses have been cut down wherever possible.
• Money spent on tourism is nil.
• Mobile bill has been reduced to? 500 from? 1000.
• And Savings equals? 3000.

Can you do it?

Question 1.
Suppose you are the finance minister of an agrarian country. Giving priority to the overall development of the country, make a five-point program.
Answer:
As a Finance Minister of an Agrarian country like India, I would focus on transforming India in five areas:

• Modernization of agriculture, encouragement to export-oriented agro-processing industries.
• Education, skill-building, and healthcare.
• Information and communication technology.
• Infrastructure development for rural industrialization.
• Spirit of Entrepreneurship.

Class 9 Geography Chapter 8 Introduction to Economics Additional Important Questions and Answers

Complete the statements choosing the correct option:

Question 1.
The term economics’ is derived from Greek word
(a) oikomonia
(b) oikonomica
(c) oikonomia
(d) oikonomics
Answer:
(c) oikonomia

Question 2.
China and Russia have adopted type of economy.
(a) Socialistic
(b) Capitalistic
(c) Mixed
(d) None of these
Answer:
(a) Socialistic

Question 3.
The main motive of a economy is to earn profit.
(a) Mixed
(b) Capitalistic
(c) Simple
(d) Socialistic
Answer:
(b) Capitalistic

Question 4.
The main aim of Socialistic economy is to achieve
(a) social welfare
(b) profit
(c) injustice
(d) tolerance
Answer:
(a) social welfare

Question 5.
Germany is an example of a country which has adopted economy.
(a) Simple
(b) Socialistic
(c) Mixed
(d) Capitalistic
Answer:
(d) Capitalistic

Question 6.
Adam Smith has defined economics as the
(a) science of knowledge
(b) science of wealth
(c) science of peace
(d) science of needs
Answer:
(b) science of wealth

Question 7.
means making the country’s economy aligned with world economy.
(a) Liberalisation
(b) Privatisation
(c) Globalisation
(d) None of these
Answer:
(c) Globalisation

Question 8.
Economics is an important science.
(a) social
(b) political
(c) physical
(d) alternative
Answer:
(a) social

Question 9.
One of the main functions of the economy is to the production cost
(a) maximize
(b) inflate
(c) increase
(d) minimize
Answer:
(d) minimize

Question 10.
An economy strives to create a balance between resources and needs.
(a) unlimited, limited
(b) limited, unlimited
(c) plentiful, limited
(d) limited, scarce
Answer:
(b) limited, unlimited

Question 11.
is known as the Father of Economics.
(a) Lionel Robbins
(b) Prof. Samuelson
(c) Amartya Sen
(d) Adam Smith
Answer:
(d) Adam Smith

Question 12.
Economics is a science which studies human behaviour as a relationship between and scarce which have alternative uses.
(a) means, ends
(b) people, resources
(c) money, land
(d) ends, means
Answer:
(d) ends, means

Question 13.
We understand from economics, how to use, money, land and effectively.
(a) minerals, factory
(b) time, labour
(c) food grains, machines
(d) people, power
Answer:
(b) time, labour

Question 14.
On a global level, there are types of economies.
(a) four
(b) two
(c) three
(d) five
Answer:
(c) three

Question 15.
economy is a borderless economy.
(a) State
(b) Town
(c) Village
(d) World
Answer:
(d) World

Question 16.
In Globalisation, there is trade and all restrictions on are set aside.
(a) restricted, economy
(b) free, investments
(c) no, activity
(d) zero, labour
Answer:
(b) free, investments

Match the column

Answer:
(1 – b),
(2 – c),
(3 – a)

Answer the following questions in one sentence each:

Question 1.
Define Economics.
Answer:
According to Lionel Robbins, “Economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses”.

Question 2.
What is an Economy?
Answer:
The activities related to the production, distribution and consumption of goods and services in a specific region is called an economy.

Question 3.
What is a Capitalistic Economy?
Answer:
The economy in which the ownership and management of the means of production is in the hands of private individuals is called as a Capitalistic Economy.

Question 4.
What is the main aim of a Capitalistic Economy?
Answer:
The main aim of a Capitalistic Economy is to earn maximum profit.

Question 5.
Which countries have adopted Capitalistic Economy?
Answer:
Germany, Japan and USA are the examples of countries which have adopted Capitalistic economy.

Question 6.
What do you mean by Socialistic economy?
Answer:
The economy in which the means of production belong to the society as a whole i.e. the government’s control is known as a Socialistic economy.

Question 7.
What is the main aim of a Socialistic economy?
Answer:
The main aim of a Socialistic economy is to achieve social welfare.

Question 8.
Name Adam Smith’s book and year of publication.
Answer:
Adam Smith’s book is titled ‘Wealth of Nations/ and was published in 1776.

Question 9.
What are the types of economy at the global level?
Answer:
Capitalist, Socialist and Mixed Economy are the types of economy at the global level

Question 10.
Which economist is known as Father of Economics?
Answer:
Adam Smith is known as Father of Economics.

Question 11.
How does Adam Smith describe Economics in his ‘Wealth of Nations’?
Answer:
In the book ‘Wealth of Nations’ Adam Smith describes Economics as ‘the science of wealth’.

Question 12.
What is the World Economy?
Answer:
World Economy is a borderless economy in which natural resources, profit, services, capital, labour and technology flow freely across the countries.

Distinguish between Capitalist Economy and Socialist Economy.
Answer:

Answer the following in detail.

Question 1.
Explain the functions of an economy.
Answer:
Every country has a different economy. But the main functions of an economy are similar. Some of the main functions of an economy are:

• Deciding the product and quantity of its production.
• Deciding for whom will the goods be produced.
• Minimising the production costs as much as possible.
• Distributing national income1 according to social and economic justice2.
• Making appropriate provisions3 for the economic needs of the future.

Question 2.
Explain the importance of Economics.
Answer:
Economics is an important Social Science Subject.

• We use Economics on a large scale in agriculture, trade, finance, administration, law and in our daily life.
• Economics holds a paramount4 importance in the overall social development of humans.

Question 3.
Name the factors affecting an economy.
Answer:
The factors affecting an economy are:

• Geographical area and natural resources.
• Population
• Occupations
• Political Sovereignty

Question 4.
Write a description of Economics given by Lionel Robbins.
Answer:

• According to Lionel Robbins, “Economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses”.
• Since human wants are unlimited their priority is determined.
• The satisfaction of the basic needs are given priority.
• A scarce resource like land can be used either for agriculture or industries or development of infrastructure.
• In this way, Economics studies human behaviour related to unlimited wants with limited resources that have alternative uses.

Question 5.
Explain the nature of the Capitalist Economy.
Answer:

• The ownership and control of means of production is in the hands of the private individuals in the Capitalist Economy.
• There is no control of the government over economic activities in their ‘Free Market Economy’.
• The objective of economic activities is to earn maximum profit.
• The capitalist economy exists in Germany, Japan and the USA.

Question 6.
Explain the nature of the Socialist Economy.
Answer:

• There is no private ownership of the means of production as these belong to the society as a whole.
• There is total control of the State over the economy.
• The objective of the economic activities is the fulfilment of social needs (social welfare).
• Socialist economy exists in Russia and China.

Question 7.
What are the main features (components) of the economy?
Answer:

1. The economy is a system related to the production, distribution and consumption of goods and services in a specific region.
2. The main features of an economy are :
   • Well defined geographical area.
   • Population, i.e. the people living within that geographical area and undertaking various economic activities.
   • Natural resources to undertake economic activities.
   • Political sovereignty that exercises control over the economy.

Question 8.
Explain the nature of globalisation.
Answer:

• Globalisation means aligning the economy of the country with the world economy.
• There is free trade and all restrictions on (foreign) investments are set aside.
• There is free flow of natural resources, profit, services, capital, labour and technology across the world.
• The aim is to establish a borderless economy.
• The recent economic policies of the government are leading the economy towards globalisation.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 3 India’s Internal Challenges Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 3 India’s Internal Challenges

Class 9 History Chapter 3 India’s Internal Challenges Textbook Questions and Answers

1. Write briefly.

Question 1.
Which demands were put forward through the ‘Anandpur Sahib Resolution’ by the Akali Dal?
OR
Which demands were raised by the Akali Dal through the ‘Anandpur Sahib Resolution’?
Answer:
In 1973, the Akali Dal passed the ‘Aanandpur Sahib Resolution’. The following demands were made in this resolution:
(i) Chandigarh should be made part of Punjab.
(ii) The Punjabi speaking parts in other states should be included in the state of Punjab,
(iii) Recruitment of people from Punjab in the Indian army should be increased.
(iv) More autonomy should be given to the state of Punjab.

Question 2.
What can we do to end communalism?
Answer:
(i) It is necessary that we all counter communalism with all our strength. For this, we should mix with people of different religions. We should accept the good practices and ideas of each other.

(ii) We should be able to look at and understand our economic and social problems rationally. We should not mix these matters with religion.

(iii) We should look for the economic, political or historical reasons that are responsible for disrupting religious harmony. This is the only way to put an end to communalism and strengthen national unity.

Question 3.
How does regionalism gain strength/become strong?
Answer:
(i) Regionalism thrives on regional imbalance in development. In the post-independence period, some states achieved more progress, while some states remained backward.

(ii) As a result, the states that develop economically can also achieve progress in other areas like education, health and culture.

(iii) The states which have not developed in this manner remain backward in education and civic amenities. The opportunities of development available to people in developed states are not possible for people in backward states.

(iv) They are troubled by problems of education, backwardness, unemployment, poverty, etc. They begin to think that they are being cheated; they are being kept away from the benefits of development. Because of this, the understanding between states is broken.

(v) The people of developed states begin to believe that they are superior due to their superior history and culture and hence they have developed that much. Then they begin to look down upon the people of underdeveloped regions.

(vi) They are not willing to share the benefits of ‘ development with the backward states.

(vii) On the other hand, the people from backward areas need to arouse their regional identity to organise themselves. For this, they try to unnecessarily glorify local traditions.

2. Explain the following concepts in your own words:

Question 1.
Communalism
Answer:
(i) Communalism is a serious threat to the unity of our country. It emerges out of narrow religious pride.

(ii) Fanaticism is the base of communalism. It makes one oblivious to national interest. Fanaticism makes the perspective of looking at events and people prejudiced.

(iii) Some people begin to think of economic and social questions in the framework of their own religion. They hold the idea that government is partial towards their religion.

(iv) If anybody speaks about their religion or insults their religious symbols knowingly or unknowingly, riots break out because of this kind of thinking. Hundreds of innocent people are killed. Public peace is destroyed.

Question 2.
Regionalism
Answer:
(i) Regionalism refers an over-adherence to the language, culture, socio-political structures and economic growth of one’s own region or territory which leads to disregard for people of other regions.

(ii) It is grounded in the uneven industrial and infrastructural development of various regions of the same nation. For example, states like Maharashtra, Gujarat, Punjab and Tamil Nadu are well developed economically and industrially, whereas states like Odisha, Bihar, Assam, have remained undeveloped economically and industrially.

(iii) The disparity in availability of education, employment and other civic amenities between developed and backward regions of the country leads to regionalism.

(iv) The people of economically backward states often feel neglected and deprived, whereas the people of developed states might become narrow-minded and refuse to share the benefits of their development.

3. Give reasons:

Question 1.
It became necessary to carry out Operation Blue Star.
Answer:
(i) In 1980, the movement for ‘Independent Khalistan’ took root in Punjab.

(ii) During that period, the leader of the Akali Dal was Sant Harcharan Singh Longowal. He used to direct his activists from the Golden Temple to stage protests.

(iii) On the other side of the Golden Temple, armed followers started gathering around the staunch Khalistan supporter Sant Jamail Singh Bhindranwale. During that period, terrorist activities had begun.

(iv) Bhindranwale was arrested in 1981, accused of the murder of newspaper editor, Lala Jagatnarayan. After this incident, the situation worsened.

(v) Due to these developments, President’s rule was imposed in Punjab in 1983.

(vi) Bhindranwale went to stay at a religious place called Akal Takht.

(vii) Bhindranwale’s followers captured the Golden Temple and built a barricade of sand bags over there. The area looked like a fort.

(viii) This greatly disturbed peace in Punjab. It was a major challenge to Indian democracy.

Question 2.
We should fight communalism with all our strength.
Answer:
(i) It is necessary that we all counter religious communalism with all our strength.
(ii) For this to become a reality, we should mix with people of different religions. We should accept the good practices and ideas of each other.
(iii) We should be able to look at and understand our economic and social problems rationally. We should not mix these issues with religion.
(iv) We should look for the economic, political or historical reasons that are responsible for disrupting religious harmony.
(v) This is the only way to put an end to communalism and to strengthen national unity.

4. Write the full forms:

Question 1.
NEFA
Answer:
North East Frontier Agency
Question 2.
MNF
Answer:
Mizo National Front

Question 3.
NNC
Answer:
Naga National Council

Class 9 History Chapter 3 India’s Internal Challenges Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
Akali Dal was the major political party of _______, which came to power in 1977.
(a) Haryana
(b) Punjab
(c) Rajasthan
(d) Gujarat
Answer:
Punjab

Question 2.
Akali Dal demanded ‘Holy City’ status for _______.
(a) Jalandhar
(b) Bhatinda
(c) Chandigarh
(d) Amritsar
Answer:
Amritsar

Question 3.
During the movement for ‘Independent Khalistan’ ______ was the leader of Akali Dal.
(a) Sant Jamail Singh Bhindranwale
(b) Sant Harcharan Singh
(c) Major General Shahbeg Singh
(d) Major General Kuldeep Singh Brar
Answer:
Sant Harcharan Singh

Question 4.
On the morning of 3rd June 1984, mission _____ started.
(a) Operation Blue Star
(b) Operation Black Thunder
(c) Operation Vijay
(d) Operation Smiling Buddha
Answer:
Operation Blue Star

Question 5.
The north-east consists of ____ states.
(a) 6
(b) 7
(c) 8
(d) 5
Answer:
8

Question 6.
In 1954, NEFA comprised of the territories on the ______ border and tribal areas towards the north of Assam.
(a) Indo-Pak
(b) Sino-Indian
(c) Indo-Nepalese
(d) Indo-Bhutanese
Answer:
Sino-Indian

Question 7.
In 1965, the responsibility of administering the north-east regions of India was given to _______.
(a) Defence Ministry
(b) Ministry of External Affairs
(c) President of India
(d) Pandit Jawaharlal Nehru
Answer:
Ministry of External Affairs

Question 8.
When India became independent, the government gave administrative autonomy to the districts of ______ majority areas of Lushai Hills.
(a) Naga
(b) Ahom
(c) Mizo
(d) Assamese
Answer:
Mizo

Question 9.
In 1961, Laldenga established the _______.
(a) All Assam Students Union
(b) Asom Gana Sangram Parishad
(c) Mizo National Front
(d) Naga National Council
Answer:
Mizo National Front

Question 10.
The Naga Tribe in north-east India was known to be a _____ tribe.
(a) nomadic
(b) pastoral
(c) martial
(d) ethnic
Answer:
martial

Question 11.
Naga National Council was led by ________.
(a) Prafullakumar Mohanto
(b) Laldenga
(c) Vizar Angami
(d) Angami Zapu Fizo
Answer:
Angami Zapu Fizo

Question 12.
The intense agitation of 1983 in Assam was staged over the question of _____.
(a) Exploitation by the landlords
(b) Bengali migrants from Bangladesh
(c) Autonomy in Assam
(d) Naxalites
Answer:
Bengali migrants from Bangladesh

Question 13.
On 20th February 1987, _______ got the status of a constituent state.
(a) Manipur
(b) Nagaland
(c) Assam
(d) Arunachal Pradesh
Answer:
Arunachal Pradesh

Question 14.
The Naxalite movement started at Naxalbari in ______ district.
(a) Darjeeling
(b) Hojai
(c) Bishnupur
(d)Tuensang
Answer:
Darjeeling

Question 15.
The Naxalites established an organisation called _____.
(a) North-east Frontier Agency
(b) People’s Liberation Guerilla Army
(c) Mizo National Front
(d) Naga National Council
Answer:
People’s Liberation Guerilla Army

Identify and write the wrong pair in the following sets:

Question 1.
(1) Greater Mizoram – Mizo National Front
(2) Aanandpur Sahib Resolution – Akali Dal
(3) Action Committees – Communalism
(4) Operation Blue Star – Kuldeep Singh Brar
Answer:
Wrong Pair: Action Committees – Communalism

Question 2.
(1) Laldenga – Chief Minister of Mizoram
(2) Lala Jagatnarayan – Naxalite
(3) Prafullakumar Mahanta-Assam Ganaparishad
(4) Jamail Singh Bhindranwale – Independent Khalistan
Answer:
Wrong Pair: Lala Jagatnarayan – Naxalite

Question 3.
(1) 1973 – Anandpur Sahib Resolution
(2) 1954 – NEFA became Arunachal Pradesh
(3) 1972 – Mizo areas got the status of Union Territory
(4) 1961 – Mizo National Front was established
Answer:
Wrong Pair: 1954 – NEFA became Arunachal Pradesh

Write the full form of the following acronyms:

Question 1.
PLGA
Answer:
People’s Liberation Guerilla Army

Do as directed

Question 1.
Complete the table using the information of Naxalite areas of activity provided in the chapter:
Answer:

Write short notes on:

Question 1.
Military action was taken to suppress the skirmishes of Naga activists.
Answer:
(i) In 1946, some’ educated Naga youth established an organisation called Naga National Council (NNC).
(ii) Later they made a demand for an independent state of Nagaland. They were led by Angami Zapu Fizo.
(iii) In 1954, the Naga National Council announced the establishment of an independent federation of Nagaland.
(iv) In 1955, skirmishes took place between local Nagas and the soldiers of the Assam Rifles. Military action was therefore taken to suppress the skirmishes (clashes).

Question 2.
The Naxalites established an organisation called PLGA.
Answer:
(i) The Naxalite Movement originated from Darjeeling, West Bengal, to raise a voice against the exploitation of farmers by the landlords and to confiscate the lands of the landlords and distribute it amongst the tenants.

(ii) Later, the Naxalites took to terrorism and started a parallel system by rejecting democracy, thereby threatening the internal security of India.

(iii) The movement was mainly located in West Bengal.

(iv) Later, the movement spread to East Godavari in Andhra Pradesh and parts of Vishakhapattanam, Karimnagar in Telangana, Adilabad, Bastar, Rajnandangaon and Sukma in Chhattisgarh, Gadchiroli, Bhandara and parts of Chandrapur in Maharashtra, Balaghat and Mandala in Madhya Pradesh and Koraput in Odisha.

(v) In order to maintain their influence, the Naxalites established an organisation called People’s Liberation Guerilla Army (PLGA). This conflict is still going on.

Question 3.
Fanaticism is the base of communalism.
Answer:
(i) Communalism is a serious threat to the unity of our country. Communalism emerges out of narrow religious pride.
(ii) But when this pride becomes excessive, then it turns into bigotry.
(iii) Each one then begins to consider their religion superior and others’ inferior. This leads to religious fanaticism which is the base of communalism.

Question 4.
Regionalism thrives on regional imbalance in development.
Answer:
(i) In the post-independence period, some states achieved more progress, while some states remained backward.
(ii) States that develop economically can also achieve progress in other areas like education, health and culture.
(iii) The states which have not developed in this manner remain backward in education and civic amenities.
(iv) They are harassed by problems of education, backwardness, unemployment and poverty, etc.
(v) They begin to think that they are being cheated; they are being kept away from the benefits of development.
(vi) Because of this, the understanding between states is broken. This in turn, has a negative impact on national unity.

Question 5.
Skirmishes took place between local Nagas and the soldiers of Assam Rifles.
Answer:
(i) In 1946, some educated Naga youth established an organisation called Naga National Council (NNC).
(ii) Later, they made a demand for an independent State of Nagaland. They were led by Angami Zapu Fizo.
(iii) In 1954, the Naga National Council announced the establishment of an independent federation of Nagaland. In 1955, skirmishes happened between local Nagas and the soldiers of the Assam Rifles.

Question 6.
Naxalite movements are a threat to internal insecurity.
Answer:
(i) The movement had the objectives of establishing Action Committees to raise a voice against the exploitation of the farmers by the landlords and confiscate the land of the landlords and distribute it among the tenants.

(ii) Later, the movement strayed away from its objectives. It took recourse to terrorism to prevent any government schemes and welfare policies from reaching the common people.

(iii) The Naxalites started a parallel system by rejecting the democratic system. This made Naxalism a serious challenge to India’s internal security.

Answer the following:

Question 1.
Which event prompted the arrest of Jamailsingh Bhindranwale?
Answer:
Bhindranwale was arrested in 1981, accused of the murder of newspaper editor, Lala Jagatnarayan. After this incident, the situation in Punjab worsened.

Question 2.
Name the constituent states of the north-east of India.
Answer:
North-east India consists of the eight states of Assam, Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim and Tripura.

Question 3.
What made the Mizo leaders demand autonomy for their province?
Answer:
(i) When India became independent, the government gave administrative autonomy to the districts of Mizo majority areas of the Lushai hills.
(ii) When the States Reorganisation Commission was appointed in 1954, the expectations of the people in this area grew. That is when the Mizo leaders started demanding an autonomous ‘Mizo’ province.

Question 4.
What do you mean by ‘Operation Black Thunder’?
Answer:
In 1986, an operation has to be conducted against terrorists in the Golden Temple. It was called ‘Operation Black Thunder’.

Question 5.
What was the objective of Naxalite Action Committees?
Answer:
The Naxalite movement had the objective of establishing Action Committees to raise a voice against the exploitation of the farmers by the landlords and to confiscate the lands of the landlords and distribute them among the tenants.

Read the following passages and answer the questions:

Passage: I

Mizoram : The tribes in north-east India have an ancient history. When India became independent, the government gave administrative autonomy to the districts of Mizo majority areas of the Lushai hills, When the States Reorganisation Commission was i ! appointed in 1954, the expectations of the people in this area grew.Mizo leaders started demanding an autonomous ‘Mizo’ province. In 1959 the territory of Mizoram experienced severe drought. During this famine, Mizo , leader Laldenga served the common people a lot. In 1961, Laldenga established an organisation called Mizo National Front (MNF). He asked for ‘Greater Mizoram’, an independent nation carved out of Tripura, Manipur and Mizo majority areas from the Lushai hills.
In March 1966, Mizo National Front announced the emergence of Independent Mizoram. Prime Minister , Indira Gandhi handled the situation firmly and suppressed the rebellion. When the situation calmed down in 1972, the Mizo majority area was given the status of a Union Territory. In 1985, Prime Minister , Rajiv Gandhi had an agreement with the Mizo National Front and Mizoram was given the status of a full-fledged State. Laldenga became the Chief Minister of the State.

Question 1.
Which areas in north-east eventually formed the state of Mizoram?
Answer:
Mizo majority areas of Lushai Hills formed the State of Mizoram.

Question 2.
Name the leading party of Mizoram.
Answer:
Mizo National Front.

Question 3.
Which operation was carried in 1986 against the terrorists in the Golden Temple?
Answer:
Operation ‘Black Thunder’

Passage: II

Nagaland: The Naga tribe in northeast India is known as a martial tribe. The Naga tribe had settled in Eastern Himalayas, the Naga hills, border areas of Assam and Myanmar. In 1946, some educated Naga youth established an organisation called Naga National Council (NNC). Later they made a demand for an independent State of Nagaland. They were led by Angami Zapu’Fizo. In 1954, the Naga National Council announced the establishment of an independent ,federation of Nagaland. In 1955, skirmishes happened between local Nagas and the soldiers of the Assam Rifles. Military action was taken to suppress the , skirmishes. Several rounds of discussions took place between the Central Government and the Naga National Council. Central Government decided , to give the Naga majority territory the status of a Union Territory. Nagaland was made a fullfledged State on 1st December 1963 by putting together the Naga majority territory and part of Tuensang.

Question 1.
Who was the leader of Naga National Council?
Answer:
Angami Zapu Fizo.

Question 2.
Which areas does Nagaland comprise of?
Answer:
Tribes residing in the eastern Himalayas, Naga Hills and on the border areas of Assam and Myanmar emerged as Nagaland. A part of Tuensang was also added to it later.

Question 3.
Which territory in the North-East eventually formed the state of Nagaland?
Answer:
Nagaland was made a fullfledged State on 1st December 1963 by putting together the Naga majority territory and part of Tuensang.

Answer the following questions in detail:

Question 1.
President’s rule was imposed in Punjab in 1983. Why?
Answer:
(i) In 1980, the movement for ‘Independent Khalistari took root in Punjab.

(ii) During that period, the leader of the Akali Dal was Sant Harcharan Singh Longowal. He used to direct his activists from the Golden Temple to stage protests.

(iii) On the other side of the Golden Temple, armed followers started gathering around the staunch Khalistan supporter Sant Jamail Singh Bhindranwale. During that period, terrorist activities had begun.

(iv) Bhindranwale was arrested in 1981, accused of the murder of newspaper editor, Lala Jagatnarayan.

(v) After this incident, the situation worsened. Due to these developments, President’s rule was imposed in Punjab in 1983.

Question 2.
Which states does north-east India comprise of and in what respects are they different from each other?
Answer:
(i) North-east India consists of the eight states of Assam, Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim and Tripura.
(ii) International borders of India touch each of the states to varying extents.
(iii) These states are different with respect to ethnicity, language and cultural diversity.

Question 3.
State the role of Pandit Jawaharlal Nehru in the assimilation of the north-eastern states into the mainstream of the country.
Answer:
(i) The first Prime Minister of independent India took the lead in bringing the tribes living in these areas into the mainstream of the country.

(ii) In 1954, he formed the North-East Frontier Agency (NEFA) area, comprising of the territories on the Sino-Indian border and the tribal areas towards the north of Assam.

(iii) Nehru took the position of bringing about the development of hundreds of tribes in these parts while preserving their culture.

Question 4.
State the constitutional measures taken by the government to assimilate north-east India into the mainstream.
Answer:
(i) Special provisions have been made with respect to these areas in the VI Schedule of the Indian Constitution.
(ii) In 1965, the responsibility of administering this area was given to the Ministry of External Affairs.
(iii) The Northeastern Council Act of 1971 was supposed to advise the Central Government regarding aspects of common interest in economic and social spheres, inter-state transport, electricity, flood control, etc.

Question 5.
What is the role of Mizo leader, Laldenga in emergence of independent Mizoram?
Answer:
(i) In 1959 the territory of Mizoram experienced severe drought. During this famine, Mizo leader Laldenga served the common people a lot.

(ii) In 1961, Laldenga established an organisation called Mizo National Front (MNF).

(iii) He asked for’ Greater Mizoram’, an independent nation carved out of Tripura, Manipur and Mizo majority areas from the Lushai hills.

(iv) In March 1966, Mizo National Front announced the emergence of Independent Mizoram.

(v) In 1985, Prime Minister Rajiv Gandhi had an agreement with the Mizo National Front and Mizoram was given the status of a full-fledged state. Laldenga became the Chief Minister of the State.

Question 6.
Describe the establishment of democracy and peace in Assam.
Answer:
(i) In 1985, Prime Minister Rajiv Gandhi, Central Home Minister Shankarrao Chavan and Assamese leader Prafullakumar Mohanto signed an Accord.

(ii) It was dedded to that the Bangladeshi dtizens who had infiltrated in Assam would be sent back to their original places.

(iii) In 1986, elections were held for Assam Legislative Assembly and Prafullakumar Mohanto, of the Asom Ganaparishad became the new Chief Minister. Due to this democratic process, it became possible to establish peace in Assam.

Question 7.
What are the features of religious fanaticism?
Answer:
(i) People of different religions don’t trust each other. They become suspidous of each other.

(ii) Compatriots following different religions are looked at as enemies. Even commensality or coming together on festivals becomes rare.

(iii) The perspective of looking at events and people is prejudiced. Some people begin to think of economic and sodal questions from within the framework of their own religion.

(iv) Some people might think that since they belong to a particular religion, they have no influence in politics. They begin to believe that they are being treated unjustly. They hold the idea that the government is against their religion.

Question 8.
Regionalism can affect developed as well as undeveloped states. Justify the statement.
Answer:
(i) The people of developed states begin to believe that they are superior due to their superior history and culture.

(ii) They then begin to look down upon people of underdeveloped regions. They are not willing to share the benefits of development with backward states.

(iii) On the other hand, the people from backward areas arouse their regional identity to organise themselves. For this, they try to unnecessarily glorify local traditions and culture to prove their uniqueness.

Question 9.
What do you mean by ‘Operation Blue Star’?
Answer:
(i) Operation Blue Star was a military action of getting the terrorists out of the Golden temple. This operation was entrusted to Major General Kuldeep Singh Brar.

(ii) On the morning of 3rd June 1984, the mission ‘Operation Blue Star’ started. The Operation ended on 6th June.

Question 10.
Which events from the Golden Temple in 1980 disturbed the peace in Punjab?
Answer:
(i) In 1980, the movement for ‘Independent Khalistan’ took root in Punjab. During that period, the leader of the Akali Dal was Sant Harcharan Singh Longowal. He used to direct his activists from the Golden Temple to stage protests.

(ii) On the other side of the Golden Temple, armed followers started gathering around the staunch Khalistan supporter Sant Jarnail Singh Bhindranwale. During that period, terrorist activities had begun.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 7 Science and Technology Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 7 Science and Technology

Class 9 History Chapter 7 Science and Technology Textbook Questions and Answers

1.A Choose the right option and rewrite the sentence:

Question 1.
_______ was named as the first Chairman of Atomic Energy Commission.
(a) Dr Homi Bhabha
(b) Dr Homi Sethna
(c) Dr A.P.J. Abdul Kalam
(d) Dr Raja Ramanna
Answer:
(a) Dr Homi Bhabha

Question 2.
________ was the first completely indigenous communication satellite made by ISRO.
(a) Aryabhatta
(b) Insat 1 B
(c) Rohini-75
(d) APPLE
Answer:
(d) APPLE

B. Identify the wrong pair:

Question 1.
(1) Prithvi – Surface-to-Surface ballistic missile
(2) Agni – Surface-to-Sea ballistic missile
(3) Akash – Surface-to-Air missile
(4) Nag – anti-tank missile
Answer:
Wrong Pair: Agni – Surface-to-Sea ballistic missile

2A. Prepare a timeline of the progress of India in science and technology:

Question .1

Answer:

B. Explain the following concepts:

Question 1.
Space research
Answer:
(i) In 1961, Indian National Committee for Space Research (NCSR) launched India’s first research rocket from Thumba Equatorial Launch Centre in Thumba in the State of Kerala.
(ii) In 1969, our indigenously built rocket Rohini-75 was successfully launched.
(iii) The next stage was the successful launch of the first Indian satellite Aryabhatta in 1975 with help from the Soviet Union.
(iv) This success proved that Indian scientists can indigenously build and launch a satellite. Indian scientists were confident that they could acquire the technology for sending a message from the Earth Station and to assess the working of the satellite.

Question 2.
Telex service
Answer:
(i) The department of telecommunications under the Ministry of Communications started the telex service in 1963 to transmit typed messages from one part of the country to another rapidly.
(ii) In 1969, the telex service started in Devanagari script in Delhi.
(iii) Later, it spread all over the country.
(iv) This service began to be used in different fields. With the rise of internet after 1990, the significance of this service reduced.

3. Explain the following with reasons:

Question 1.
Pandit Nehru established the Atomic Energy Commission.
Answer:
(i) India’s first Prime Minister Pandit Jawaharlal Nehru wanted to nurture a scientific temper and bring about the nation’s progress.
(ii) From this perspective, he set up the Indian Atomic Energy Commission on 10th August, 1948.
(iii) Dr Homi Bhabha was appointed as the first Chairman of the Commission.
(iv) The objectives of the commission were to produce electricity from atomic energy, increase the yield of food grains and make them last longer, set up the technology for achieving this and develop nanotechnology.

Question 2.
India decided to conduct nuclear tests.
Answer:
(i) India successfully performed her first nuclear test at Pokharan in Rajasthan on 18th May, 1974 in consonance with the policy of using nuclear energy for peaceful purposes and for self sufficiency.

(ii) The reason why India took this decision was China’s nuclear capability and Pakistan’s desperate efforts to acquire nuclear weapons with China’s help.

(iii) Dr Homi Sethna, the chairman of the Indian Atomic Energy Commission and Dr Raja Ramanna, Director of the Bhabha Atomic Research Centre played a major role in conducting this nuclear test.

(iv) Prime Minister Indira Gandhi took the decision of carrying out a ‘nuclear explosion’. Pokharan was chosen on the basis of the required criteria for the location of the nuclear tests : far away from human settlement and no ground water reserves.

Question 3.
USA imposed economic sanctions on India.
Answer:
(i) On 11th May 1998, India carried out its second nuclear test to prove its nuclear preparedness.
(ii) Three tests were done on this day.
(iii) One of them was of the hydrogen bomb.
(iv) Prime Minister Atal Bihari Vajpayee assured that there would be no first use of nuclear weapons by India. But the USA imposed economic sanctions on India immediately.

4. Write the answers in 25 to 30 words:

Question 1.
Write about Pokharan nuclear test.
Answer:
(i) India successfully performed her first nuclear test at Pokharan in Rajasthan on 18th May, 1974 in consonance with the policy of using nuclear energy for peaceful purposes and for self-sufficiency.

(ii) The reason why India took this decision was China’s nuclear capability and Pakistan’s desperate efforts to acquire nuclear weapons with China’s help.

(iii) Dr Homi Sethna, the chairman of the Indian Atomic Energy Commission and Dr Raja Ramanna, Director of the Bhabha Atomic Research Centre played a major role in conducting this nuclear test.

(iv) Prime Minister Indira Gandhi took the decision of carrying out a ‘nuclear explosion’. Pokharan was chosen on the basis of the required criteria for the location of the nuclear tests: far away from human settlement and no groundwater reserve.

Question 2.
For which sector was Bhaskar-1 satellite expected to be useful?
Answer:
(i) India launched remote sensing experimental satellite Bhaskar-1 from the Soviet Union in 1979 in order to observe various things on the surface of the Earth by remote sensing technology.

(ii) This remote sensing technology would be useful for India’s development by regarding water bodies, mineral deposits and forecasting weather.

(iii) The photographs taken with the help of this technology about the bowels of the Earth, environment and forests were important.

(iv) Another area in which the information from this satellite was useful was Oceanography

5. Write in brief:

Question 1.
Which of the everyday services are influenced by satellite technology?
Answer:
(i) Bhaskar-1: India launched remote sensing experimental satellite Bhaskar-1 from the Soviet Union in 1979 in order to observe various things on the surface of the Earth by remote sensing technology. This remote sensing technology would be useful for India’s development by regarding water bodies, mineral deposits and forecasting weather. The photographs taken with the help of this technology about the bowels of the Earth, environment and forests were important. Another area in which the information from this satellite was useful was Oceanography. In 1981, ‘Bhaskar-2’ was launched from Soviet Union.

(ii) (if APPLE (Ariane Passenger Payload Experiment): The first completely indigenously built satellite by ISRO in India, APPLE was launched on 19th June, 1981 from the French Guiana. ‘APPLE’ was beneficial in the field of education. The objective of providing emergency telecommunication services was successful.

(iii) Indian National Satellite (INSAT): In August 1983, the satellite INSAT 1-B was launched in space. Because of this satellite, a major revolution came about in the areas of telecommunication, television, radio, weather forecasting and space research in India. Due to INSAT, 207 Akashwani or Radio stations could be connected to each other. This mechanism was also useful for search and rescue of people caught in some disaster like a shipwreck or an air plane crash, for forecasting weather, to look for and follow cyclones or storms, in the fields of telemedicine and educational institutions. The tele-medicine service enabled the population from remote areas to get advice and treatment from expert doctors. Public Primary Health Centers in villages have been connected with super speciality hospitals through INSAT.

(iv) Satellite Communication Centre: In order to establish satellite communication with the help of an artificial satellite, a domestic satellite communication Earth station was established in 1967, at Jodhpur Tekra near Ahmedabad. This made it easy to train scientists and technicians in setting up and running an Earth Station within the country. In 1970, a centre was established at Aarvi near Pune, equipped for international telecommunication service. The technology adopted by railways has a big role in the history of modern India.

Question 2.
Why is Dr. A.P.J. Abdul Kalam called as the ‘Missile Man’?
Answer:
(i) In 1958, Defence Research and Development Organisation (DRDO) was established under the Department of Defence of the government of India. The objective of this organisation was to make India self-sufficient with respect to means, equipment and weapons required for defence. After 1983, this organisation developed several missiles under the leadership of Dr. A.P.J. Abdul Kalam. Dr Kalam has made a great contribution in the production of missiles. Dr Kalam is known as the father of India’s missile programme. He is also referred to as the ‘Missile Man’ of India.

(ii) Integrated Guided Missile Development Programme (IGMDP) was conceived by and carried out under the leadership of Dr A.P.J. Abdul Kalam. Defence Research and Development organisation (DRDO) undertook the task of building the missiles.

Question 3.
How can one have computerized reservation done for railway travel?
Answer:
(i) There is a site called IRCTC for online railway bookings. On it’s site, sign up option is given through which Login Id and Password is created for IRCTC account. One must login with this ID and password for booking railway ticket. A captcha image needs to be filled to ensure the account is not being misused.

(ii) To the left of the page on the site, a column is given to enter the destination and boarding point, along with the date on which the journey is supposed to be made. After filling this, the list of trains along with their numbers, berth system, schedules is shown. The Quota, i.e. general, ladies, senior citizen needs to be filled here.

(iii) Here, if the ladies quota is selected, the berth is booked in the compartment reserved exclusively for ladies. If senior citizen quota is selected, exemption in travel fees is given.

(iv) After this, berth preferences i.e. sleeper, second seating is to be selected to book the tickets. Upon which, a new window opens for filling the details like name of the passenger, age, etc. A captcha image needs to be filled again to confirm booking.

(v) The gateway to online payment opens up which is done through Debit Card or Internet Banking, whichever is easier for the person booking it. A message of confirmation and email is received to the person booking it for his/her detail.

Question 4.
Write the key features of the Konkan Railway.
Answer:
(i) The Konkan Railway started in 1998.

(ii) There are several records of technology to the credit of Konkan Railway which stretches over the four states of Maharashtra, Goa, Karnataka and Kerala over a distance of 760 kilometres.

(iii) There are 12 tunnels on this track. The 6.5 km tunnel at Karbude is the longest tunnel. There are 179 big and 1819 small bridges on this track.

(iv) Out of these, the 2065.8 m long bridge on River Sharavati near Honnawar is the biggest, i.e. The 64 m tall bridge on River Panval near Ratnagiri is India’s tallest bridge.

(v) For avoiding accidents on tracks that are prone to landslides, there are sensors fitted to the railway engines.

Class 9 History Chapter 7 Science and Technology Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
The Indian Atomic Energy Commission was set up on_______.
(a) 10th Aug, 1958
(b) 10th Aug, 1948
(c) 10th Aug, 1968
(d) 19th Aug, 1858
Answer:
(b) 10th Aug, 1948

Question 2.
In 1956, the Department of Atomic Energy set up _______, a nuclear reactor functioning on atomic energy.
(a) Syrus
(b) Zarlina
(c) Poornima
(d) Apsara
Answer:
(d) Apsara

Question 3.
India successfully performed her first nuclear test at ______.
(a) Pokhran
(b) Jaipur
(c) Delhi
(d) Haryana
Answer:
(a) Pokhran

Question 4.
Prime Minister _________ assured that there would be no first use of nuclear weapons by India.
(a) Pandit Jawaharlal Nehru
(b) Atal Bihari Vajpayee
(c) Indira Gandhi
(d) VP Singh
Answer:
(b) Atal Bihari Vajpayee

Question 5.
The first digit of the pincode indicates the ______.
(a) State
(b) Region
(c) Nation
(d) District
Answer:
(b) Region

Question 6.
Agni had a range of ________ km.
(a) 800
(b) 600
(c) 700
(d) 500
Answer:
(c) 700

Question 7.
In 1981, ‘Bhaskar-2’ was launched from _______ .
(a) Soviet Union
(b) Japan
(c) China
(d) America
Answer:
(a) Soviet Union

Question 8.
_____a surface to surface ballistic missile was given to the Army.
(a) Prithvi -1
(b) Prithvi – 2
(c) Prithvi – 3
(d) Agni
Answer:
(a) Prithvi -1

Question 9.
APPLE’ was beneficial in the field of _______.
(a) Military
(b) Education
(c) Health
(d) Technology
Answer:
(b) Education

Question 10.
In _________ the telecommunication department was restructured.
(a) 1991
(b) 2000
(c) 2002
(d) 1880
Answer:
(b) 2000

Question 11.
Konkan railway started in the year _______.
(a) 1888
(b) 1988
(c) 1998
(d) 1994
Answer:
(c) 1998

Question 12.
On,________ the mobile phone service started in India.
(a) 23rd Aug, 1994
(b) 22nd Aug, 1994
(c) 24th Aug, 1994
(d) 21st Aug, 1994
Answer:
(b) 22nd Aug, 1994

Question 13.
In 1970, a domestic satellite communication earth centre was established at Aarvi near _______, equipped for international telecommunication service.
(a) Mumbai
(b) Pune
(c) Nagpur
(d) Nashik
Answer:
(b) Pune

Identify and write the wrong pair from the following sets:

Question 1.
(1) Dr. Homi Sethna – Chairman of DRDO
(2) Dr. Raja Ramanna – Director of BARC
(3) Sam Pitroda – Spearheaded telecommunication
(4) Dr. A.P.J. Abdul Kalam – Conceived and Carried out IGMDP
Answer:
Wrong Pair : Dr. Homi Sethna – Chairman of DRDO

Question 2.
(1) First diesel engine – Diesel Locomotive Works at Varanasi
(2) India’s tallest bridge – at Karbude
(3) Completely Indian made nuclear reactor – Dhruva at Trombay
(4) India’s first research rocket – Thumba Equatorial Launch Centre at Kerala.
Answer:
Wrong Pair : India’s tallest bridge – at Karbude

Question 3.
(1) Indigenously built rocket – Rohini 75
(2) First Indian Satellite – Aryabhatta
(3) Headquarters of ISRO – Sriharikota
(4) Reactor research Centre – Kalpakkam
Answer:
Wrong Pair: Headquarters of ISRO – Sriharikota

Question 4.
(1) NPCIL – setup in 1987
(2) Bhaskar – 2 – launched in 1981
(3) ONGC – established in 1998
(4) Tarapur power station – Setup in 1969
Answer:
Wrong Pair : ONGC – established in 1998

Question 5.
(1) Post and Telegraph Department started the 6 digit pincode system – 15th August 1972
(2) Indian Atomic Energy Commission was setup – 10th August 1948
(3) Indian Space Research Organisation was established – 15th August 1959
(4) First Nuclear test at Pokhran – 18th May 1974
Answer:
Wrong Pair: Indian Space Research Organisation was established – 15th August 1959

Question 6.
(1) Domestic Satellite Communication Earth Centre – Jodhpur Tekra
(2) Space station to launch satellites – Sriharikota
(3) Mineral Oil Deposit – Digboi in Assam
(4) Factories manufacturing Heavy Water – Chittaranjan in Bardwan
Answer:
Wrong Pair : Factories manufacturing Heavy Water – Chittaranjan in Bardwan

Question 7.
(1) Satellite built by ISRO – APPLE
(2) Satellite to connect super speciality hospitals – INSAT
(3) Remote sensing experimental satellite – Bhaskar -1
(4) First Indian Satellite – Rohini – 75
Answer:
Wrong Pair : First Indian Satellite – Rohini – 75

Question 8.
(1) INSAT, 1-B was launched – August 1983
(2) APPLE was launched – June 1981
(3) Mobile services started – August 1994
(4) Second Nuclear test – June 1998
Answer:
Wrong Pair : Second Nuclear test – June 1998

Question 9.
(1) Telex services started in Devanagari Script -1969
(2) India successfully tested missile Agni -1989
(3) Computerised reservation started in Delhi -1986
(4) Satellite Communication Centre established at Aarvi, Pune -1970
Answer:
Wrong Pair : Computerised reservation started in Delhi -1986

Write short notes:

Question 1.
Pincode
Answer:
(i) From 15 August 1972, the Post and Telegraph Department started the six digit pincode system in the country.
(ii) The Postal Index Code was intended to bring efficiency in distributing the mail. In this system, the country was divided into nine regions.
(iii) The first digit of the Pincode indicates the region, the second digit indicates the Sub¬region, the third digit shows the main disbursement district, while the remaining three digits show the location of the local post office.
(iv) For Maharashtra, 40, 41, 42, 43, 44 are the first two digits. In 1986, the speed post service was started to send postage rapidly.

Question 2.
Akash and Nag missiles
Answer:
(i) In 1990, the missile Akash was developed to fire from land into air.
(ii) This missile has a capacity to carry 720 kilogram explosives at supersonic speed and a range of 30 kilometres.
(iii) The missile ‘Nag’ was made in order to destroy the tanks of the enemy.
(iv) It is of the ‘fire and forget’ type. India has militarily become secure due to the production of missiles.

Question 3.
Bharat Sanchar Nigam Limited (BSNL)
Answer:
(i) In 2000, the telecommunication department was restructured.
(ii) The responsibility to make policy decisions was retained with the Telecom Department.
(iii) Bharat Sanchar Nigam Limited was established to actually provide the services to consumers.
(iv) Along with the telephone service, cellular phone, internet, broadband services were also made available.

Question 4.
Dhruva Nuclear Reactor
Answer:
(i) In 1985, a completely Indian made nuclear reactor called Dhruva was started at Trombay near Mumbai.
(ii) The Dhruva nuclear reactor uses uranium as fuel.
(iii) At this center, 350 radioactive substances are produced. They are used in industry, agriculture and medicine.

Question 5.
Nuclear Power Corporation of India Ltd. (NPCIL)
Answer:
(i) This Company was set up in 1987 to generate electricity from atomic energy.

(ii) The objective of the company is to master and develop the technology to generate safe, cheap and environmentally profitable power and make the country self-sufficient.

Question 6.
DRDO was established.
Answer:
(i) In 1958, Defence Research and Development Organisation (DRDO) was established under the Department of Defence of the Government of India.

(ii) The objective of this organisation was to make India self-sufficient with respect to means, equipment and weapons required for defence.

(iii) After 1983, this organisation developed several missiles under the leadership of Dr A.P.J. Abdul Kalam. Dr Kalam has made a great contribution in the production of missiles.

(iv) Dr Kalam is known as the Father of India’s Missile Programme. He is also referred to as the ‘Missile Man’ of India.

Read the passage and answer the questions:

Passage I

Space research: In 1961, Indian National Committee for Space Research (NCSR) launched India’s first , research rocket from Thumba Equatorial Launch Center in Thumba in the State of Kerala. In 1969, our indigenously built rocket Rohini-75 was successfully launched. The next stage was the successful launch , of the first Indian satellite Aryabhatta in 1975 with ‘ help from the Soviet Union. This success proved that Indian scientists can indigenously build and launch satellite. Indian scientists were confident that they , could acquire the technology for sending a message from the Earth Station and to assess the working of the satellite.
Indian Space Research Organisation (ISRO) : After , the success of the basic programme in space research and rocket related project, Indian Space Research Organisation was established on 15th August 1969 in order to carry out further space research. ‘ The headquarters of ISRO are at Bengaluru. ISRO activated the space station at Sriharikota in Andhra Pradesh for launching our satellites in space.

Bhaskar-1: India launched remote sensing ,experimental satellite Bhaskar-1 from the Soviet Union in 1979 in order to observe various things on the surface of the earth by remote sensing technology, This remote sensing technology would be useful for India’s development by regarding water bodies, mineral deposits and forecasting weather. The photographs taken with the help of this technology about the bowels of the earth, environment and forests were important. Another area in which the information from this satellite was useful was oceanography. In 1981, ‘Bhaskar-2’ was launched from Soviet Union.

Question 1.
What does the passage deal with?
Answer:
The passage deals with India’s success in space research.

Question 2.
Complete the following
Answer:

Question 3.
State the benefits of remote sensing technology.
Answer:
Following are the benefits of Remote Sensing Technology:

• Useful for India’s development by regarding water bodies mineral deposits and forecasting weather.
• Important information can be gathered about bowels of earth, environment and forests through the photograph.
• Useful information about Oceanography can be assessed.

Passage II

Oil and Natural Gas Commission (ONGC) : In 1956, the Oil and Natural Gas Commission was established to search for the deposits of mineral oil and natural gas and to increase their production. After Digboi in Assam, mineral oil deposits were found in Ankleshwar , area in Gujarat. Later, mineral oil and natural gas deposits were found in the gulf of Khambhat in Gujarat. In 1974, the Oil and Natural Gas Commission , started digging an oil well in ‘Bombay High’ area , with the help of Russian scientists by a drillship called ‘Sagar Samrat’. From 1975, mineral oil and natural gas began to be extracted from there. Later, more than 8500 oil wells and 33 natural gas wells dug eventually in this area began to contribute , 38% of the total mineral oil production in the country and met 14% of the country’s demand for crude oil.

Railways and Technology : The technology adopted by railways has a big role in the history of modem India. In order to bring efficiency, accuracy and coordination in the reservation system in rail travel, computerised reservation system was started for the first time in Delhi in 1984. In the same year, the Metro was started in Kolkata. In this way India has been making progress in the fields of science and technology. New inventions have been made. India is an important 21st century nation, which has always used technology for establishing peace in the world. India is making all these advancements in order to be the foremost among nations in the 21st century. In the next chapter, we shall learn about the progress India , has made in the fields of commerce and trade.

Question 1.
State the odd man out – and state the reason Digboi, Kohima, Ankleshwar, Bombay High
Answer:
Kohima – Because the other three locations of Digboi, Ankleshwar and Bombay High have notable reserves of natural gas and mineral oil
deposits.

Question 2.
Complete the following – Konkan Railway chart:
Answer:

Question 3.
Do you think we can rely on our mineral oil deposits for time to come? Justify your answer.
Answer:
Mineral Oil Deposits are fast depleting due to it’s indiscriminate consumption by industries. Such natural resources of energy should be spared through fuel conservation schemes and greater use of inexhaustible sources of energy such as – Tidal, Solar or Wind energy.
Since mineral oil deposits are not renewable source of energy, it is advisable not to rely on it for time to come or we may face energy crisis.

Answer the following questions in detail:

Question 1.
Write a note on the Indian Atomic Energy Commission.
Answer:
(i) In India’s first Prime Minister Pandit Jawaharlal Nehru wanted to nurture a scientific temper and bring about the nation’s progress. From this perspective, he set up the Indian Atomic Energy Commission on 10th August 1948. Dr. Homi Bhabha was appointed as the first Chairman of the Commission. The objectives of the commission were to produce electricity from atomic energy, increase the yield of food grains and make them last longer, set up the technology for achieving this and develop nanotechnology. In 1956, the Department of Atomic Energy set up ‘Apsara’, a nuclear reactor functioning on atomic energy.

(ii) In 1969, an atomic power station was set up at Tarapur. A Reactor Research Centre was set up at Kalpakkam in Tamil Nadu to successfully use Thorium for generating atomic power. The role of reactors is important in developing atomic power.

(iii) Factories manufacturing the heavy water needed for the generation of atomic power were set up at Vadodara, Talcher, Tutikorin, Kota, etc. An institution called Heavy Water Projects was set up to carry out research on manufacturing heavy water within the country. It was later renamed ‘Heavy Water Board’.

Question 2.
Write about ISD.
Answer:
(i) In 1972, Overseas Communication Service was established in Mumbai for the Management of International Telecommunication Service.

(ii) In 1976, the International Subscriber Dialled Telephone Service started to connect Mumbai and London directly on the phone.

(iii) Alongside the telephone service, services like telex, teleprinter and radio images started. In 1986, Videsh Sanchar Nigam Limited (VSNL) took a big leap in this field. Before that, Mahanagar Telephone Nigam Limited (MTNL) was a public sector company for giving telephone service in big cities.

(iv) In the 1990s, Videsh Sanchar Nigam Limited held the distinction of being the main internet service provider in India. The contribution of Sam Pitroda in this field is significant.

Question 3.
Write about Oil and Natural Gas Commission.
Answer:
(i) In 1956, the Oil and Natural Gas Commission was established to search for the deposits of mineral oil and natural gas and to increase their production.

(ii) After Digboi in Assam, mineral oil deposits were found in Ankleshwar area in Gujarat. Later, mineral oil and natural gas deposits were found in the gulf of Khambhat in Gujarat.

(iii) In 1974, the Oil and Natural Gas Commission started digging an oil well in ‘Bombay High’ area with the help of Russian scientists by a drillship called ‘Sagar Samrat’.

(iv) From 1975, mineral oil and natural gas began to be extracted from there.

(v) Later, more than 8500 oil wells and 33 natural gas wells dug eventually in this area began to contribute 38% of the total mineral oil production in the country and met 14% of the country’s demand for crude oil.

Observe the picture and write relevant information:

Question 1.

Answer:
Bhaskar 1 was a remote sensing experimental satellite launched by India.
Remote Sensing Technology would be useful for India’s development by regarding water bodies, mineral deposite and forecasting weather.
The photographs taken with the help of this technology about the bowels of the earth environment and forest were important. Bhaskar -1 was launched in 1979 and Bhaskar 2 was launched in 1981 from Soviet Union.

Question 2.

Answer:
Indian Atomic Energy Commission:
India’s first Prime Minister Pandit Jawaharlal Nehru wanted to nurture a scientific temper and bring about the nation’s progress. From this persepective, he set up the Indian Atomic Energy Commission on 10th August 1948. Dr. Homi Bhabha was appointed as the first Chairman of the Commission. The objectives of the Commission were to produce electricity from atomic energy, increase the yield of food grains and make them last longer, set up the technology for achieving this and develop nanotechnology.

Question 3.

Answer:
In 1958, Defence Research and Development Organisation (DRDO) was established under the Department of Defence of the government of India. The objective of this organisation was to make India self-sufficient with respect to means, equipment and weapons required for defence. After 1983, this organisation developed several missiles under the leadership of Dr. A. P. J. Abdul Kalam. Dr. Kalam has made a great contribution in the production of missiles. Dr. Kalam is known as the ‘Father of India’s missile programme’. He is also referred to as the ‘Missile Man’ of India.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 4 Exogenetic Movements Part 2, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 4 Exogenetic Movements Part 2

Class 9 Geography Chapter 4 Exogenetic Movements Part 2 Textbook Questions and Answers

1. Rewrite the correct statement:

Question 1.
The temperature range helps the wind in its work.
Answer:
Correct.

Question 2.
River’s work is more prominent than other agents of erosion in desert regions.
Answer:
Incorrect. Work of wind is more prominent in desert regions than other agents of erosion.

Question 3.
The work of groundwater is effective in the area with soft rocks.
Answer:
Correct.

2. Correct and rewrite the incorrect statements:

Question 1.
The ice on the lateral side of the glacier moves faster than the ice at the base.
Answer:
Incorrect. The ice on the base of the glacier moves faster than the ice on the lateral side.

Question 2.
The depositional work by rivers happens because of gentle slope, reduced speed and transported sediments.
Answer:
Correct.

Question 3.
A river flows at a faster speed than the glacier.
Answer:
Correct.

Question 4.
The speed of the glacier is more on both the banks than in the middle.
Answer:
Correct.

3. Identify the wrong pair

Question 1.
Deposition – V-shaped valley
Answer:
Wrong pair.
Correct pair is – Erosion – V-shaped valley

Question 2.
Transport – Ripple Marks
Answer:
Transport – Ripple Marks

Question 3.
Erosion – Mushroom Rocks
Answer:
Erosion – Mushroom Rocks

4. Identify and name the landforms in the following diagrams :

Answer:
(i) V-shaped valley
(ii) Gorge (Canyon)
(iii) Delta

5. Complete the following table by classifying the landforms according to their agents of erosion.
(waterfall, delta, cirque, arête, barchans, moraine, pothole, mushroom rock, sinkholes, beach, pillars, lagoons)
Rivers Wind Glacier Sea Waves Groundwater
Answer:

6. Answer the following questions in brief.

Question 1.
List the landforms that are a result of the erosional work of the rivers.
Answer:
Gorges (canyons), V-shaped valleys and waterfalls are the result of the erosional work of the rivers.
(i) ‘V’ Shaped Valley:

• A ‘V shaped valley is formed due to the erosional work of a river.
• Over a period of time, the amount of load in the flow starts increasing.
• More and more energy of the river gets consumed in transporting the material.
• As a result, there is less erosion of the bed. The erosion along the banks and the slopes of the valley increases.
• Hence, the slopes recedes and the valley with near-vertical sides becomes wider, resembling the letter ‘V’.

(ii) Gorge:

• A gorge is found in the upper course of the river.
• It is a deep and narrow valley with steep sides.
• In mountainous areas, the river flows with great speed. Therefore, the bed of the river gets eroded more than its banks, giving rise to a gorge that has a steep banks and a narrow bed.

(iii) Waterfall:

• Waterfalls are formed as a result of the erosional work of a river.
• Water flowing over a hilly region cascades down a cliff, forming a waterfall.
• In the areas, where the hard and soft rocks are next to each other, the soft rocks are eroded faster than the hard ones. A difference in the height along the river bed leads to the formation of a waterfall.

Question 2.
Which agent is responsible for the formation of stalactites and stalagmites and where are they formed?
Answer:

• The work of groundwater is responsible for the formation of stalactites and stalagmites.
• In areas of limestone, the alkaline water seeps through the roof of the limestone caves.
• When this water evaporates, minerals get deposited at the bottom and at the top of the limestone caves.
• This leads to formation of stalactites and stalagmites.

Question 3.
List the landforms that are produced by the depositional work of the sea waves
Answer:
The landforms like beaches, sand bar, lagoons are formed due to depositional work of the sea waves.
(i) Beach:

• Large amount of sediments come from the landward side in areas between two adjoining headlands.
• Moreover, as these areas are shallow, the velocity of the waves decreases.
• As a result, the sediments that come from the land, as well as those coming from the deep sea, get deposited in this area.
• Predominantly fine sand gets settled along the coast.
• Such sandy deposits along the coasts are called beaches.

(ii) Lagoon:

• The brackish water separated from the seawater by sand bars and lying in the areas between the coast and bars is called a lagoon.
• As the waters are separated from the open sea, large waves are not generated.
• These lagoons run parallel to the sea coast.

(iii) Sand bars:

• Sand gets deposited along the sides of the headlands.
• The deposition extends parallel to the coast from one headland to the next.
• Over a period of time, these deposits extend over long distances forming bars that protrude into the water at some distance away from the beach.
• These are known as ‘sand bars’, Sometimes, the eroded material from the’ beach, gives rise to the sand bars.

Question 4.
Name the types of moraines.
Answer:
The glaciers carry sediments with them. These sediments are called moraines. Depending ond the location of the deposits, moraines can be divided into 4 types: ground moraines, lateral moraines, medial moraines and terminal moraines.

• The material deposited at the base of a glacier is called ground moraine.
• The material deposited along the banks of a glacier is called Lateral moraine.
• After the confluence of two glaciers, the moraine deposited in the central part of the glacier is known as medial moraine. It is formed out of . the side moraine of the inner banks of the two glaciers.
• At the end where a glacier turns into a stream, huge quantity of moraine is deposited. The stream of water is unable to carry the moraine further. As the deposited moraine is at the terminal part of a glacier, it is called terminal moraine.

7. Observe the following picture carefully. Identify the landforms formed by different agents of erosion. Number them with a pencil here and write their names in the sequence in your notebook.

(i)

Answer:
Depositional work of river

(ii)

Answer:
Depositional work of river

(iii)

Answer:
Erosional work of river

(iv)

Answer:
Depositional work of river

(2) Some pictures of the landforms formed by glaciers3 are given below. Write the function because of which they have been formed.

(i)

Answer:
Erosional work of glacier

(ii)

Answer:
Erosional work of glacier

(iii)

Answer:
Depositional work of glacier

(iv)

Answer:
Depositional work of glacier

(v)

Answer:
Erosional work of glacier

(vi)

Answer:
Erosional work of glacier

(vii)

Answer:
Depositional work of glacier

(3) Some pictures of the Iandforms produced by the work of the winds are given below. See the pictures and write in the box whether they have been formed by erosion or deposition.

(i)

Answer:
Erosional work of wind

(ii)

Answer:
Depositional work of wind

(iii)

Answer:
Depositional work of wind

(iv)

Answer:
Depositional work of wind

(v)

Answer:
Erosional work of wind

(vi)

Answer:
Erosional work of wind

(4) Some pictures of the landforms produced by the work of the sea waves are given below. See the pictures and write in the box whether they have been formed by erosion or deposition.

With the help of internet, obtain information regarding the places along the Konkan coast where you will find the landforms formed by sea waves.

(i)

Answer:
Erosional work of sea waves.

(ii)

Answer:
Depositional work of sea waves

(iii)

Answer:
Erosional work of sea waves.

(iv)

Answer:
Erosional work of sea waves.

(v)

Answer:
Erosional work of sea waves.

(vi)

Answer:
Depositional work of sea waves.

(vii)

Answer:
Depositional work of sea waves.

(5) See the pictures of the landforms produced by the work of groundwater. Write in the box below them whether they are formed through the work of erosion or deposition.

(i)

Answer:
Erosional work of ground water

(ii)

Answer:
Depositional work of ground water

Class 9 Geography Chapter 4 Exogenetic Movements Part 2 Intext Questions and Answers

Draw a diagram showing landforms at the sea coast:
Answer:

Can You Tell?

Question 1.
How will you differentiate between a rill, gully, stream and a river?
Answer:
The smallest natural flow of rain water is a rill. Many rills come together to form a gully. Many gullies come together and form a stream. Many streams come together and form a river. Thus we can see that rills, gullies, streams nad rivers are the various forms of flowing water in increasing order of their size.

Question 2.
What is a river?
Answer:
Running water flows naturally in a direction according to gravity along the slope, making its own way. This is called a flow of water when many such flows of water come together a river is formed.

Question 3.
Where can you see the work by glaciers in India?
Answer:
Glaciers can be seen in the Himalayan region in India.

Question 4.
In which natural region can you see the work of glaciers at the sea level?
Answer:
We can see the work of glacier at sea level in the Polar regions (Antarctica).

Question 5.
Where will you find the landforms formed by sea waves along the Konkan coast?
Answer:
Along the Konkan coast, landforms formed by sea waves can be found at Harihareshwar, Bhagwatibandar, Shrivardhan, Ratnagiri and Sindhudurg.

Think about it.

Question 1.
There are many creeks found in the coastal areas of Konkan but no delta, why?
Answer:
The Konkan coast has an indented (broken) coastline. Hence many creeks are found here. Many small seasonal rivers originate in the steep western side of the Western Ghats. As the rivers flow through the steep slopes their velocity increases. So, there is very little erosion done by them. Due to the narrow width of the Konkan coast, the rivers cover a short distance and drain in the Arabian sea. Thus they do not form estuaries rather than deltas.

Question 2.
Can you see a glacier moving just as you can observe the movement of river water?
Answer:
No

Question 3.
Ramu has to dig a well in his farm. But he is in a dilemma as to which season should he dig it so that there is water supply for a longer time. What will you suggest to Ramu?
Answer:
Ramu should dig a well during the summer season. A deep well can be dug during the summer season. This will ensure water supply not only during the monsoon and winter season but also during the next summer season.

Question 4.
Which agent has more kinetic energy of all-wind, river or glacier?
Answer:
Glacier is the agent of erosion which has the most kinetic energy of all. The glacier is a mixture of heavy soil and rock particles which are flowing. Thus it has both weight and movement.

Find out.

Question 1.
Is there any lake found near the meanders of the river? Obtain information about them.
Answer:

• Ox-Bow lakes are usually found near the meanders of a river.
• Wherever the river changes its direction, erosion takes place along the outer banks.
• If these conditions occur again and again, the river develops a zigzag path.
• Such a zigzag path is called a meandering path (course) and each loop along the path is called meander.
• When the turns in the course become acute, the limbs of a turn come very close.
• During flood, as the force of water increases, the river skips the meandering path and follows a straight path.
• The abandoned portion of the loop develops into a lake that is called an ‘ox-bow’ lake.

Question 2.
Where will you find mushroom rocks in the Deccan Plateau?
Answer:
Mushroom rocks can be found in the Hyderabad.

Question 3.
Can you find the work of wind near coastal areas? What landforms will be formed there?
Answer:
Yes, Ripple marks and sand mounds can be seen on the sand in the coastal regions.

Question 4.
Where are limestone caves, stalactites and stalagmites found in Maharashtra?
Answer:
Limestone caves, stalactites and stalagmites are found in Kanhur caves in the Ahmednagar district of Maharashtra.

Question 5.
Why are the landforms formed in limestone called Karst?
Answer:
A karst is an area of land formation created by eroding and dissolving portions of limestone or other soluble rock layers above or below the ground. According to the prevalent interpretation, the term is derived from the German name for the Karst region, a limestone plateau above the city of Trieste in the northern Adriatic.

Class 9 Geography Chapter 4 Exogenetic Movements Part 2 Additional Important Questions and Answers

Complete the statements by choosing the correct options.

Question 1.
The sediments are deposited at the foothills of the mountains in a triangular area forming an/a ………….. .
(a) alluvial fan
(b) yardang
(c) delta
(d) V-shaped valley
Answer:
(a) alluvial fan

Question 2.
The sediments carried by the glacier2 are called ………….. .
(a) sediments
(b) silt
(c) moraines
(d) alluvium
Answer:
(c) moraines

Question 3.
The erosional, transportation and depositional work of wind is more prominent in ………….. .
(a) polar regions
(b) deserts
(c) temperate regions
(d) grasslands
Answer:
(b) deserts

Question 4.
When many flows of water come together a …………… is formed.
(a) gorge
(b) river
(c) glacier
(d) canyon
Answer:
(b) river

Question 5.
The water which percolates through the porous rocks on the non-porous layer of rock is termed as ………….. .
(a) glacier
(b) flood leeves
(c) ground water
(d) surface water
Answer:
(c) ground water

Question 6.
…………… is formed due to depositional work of river.
(a) Delta
(b) Gorge
(c) V-shaped valley
(d) Canyon
Answer:
(a) Delta

Question 7.
In regions, where the temperatures are generally below freezing points, precipitation is in the form of ………….. .
(a) rainfall
(b) hail
(c) snowfall
(d) frost
Answer:
(c) snowfall

Question 8.
The erosional work of glacier forms ………….. .
(a) drumlins
(b) eskers
(c) cirques
(d) yardangs
Answer:
(c) cirques

Question 9.
The Jacobshavn Glacier in …………… is one of the fastest moving glaciers in the world.
(a) Finland
(b) Greenland
(c) Antarctica
(d) Himalayas
Answer:
(b) Greenland

Question 10.
The depositional work of ground water forms ………….. .
(a) limestone caves
(b) lagoons
(c) ripple marks
(d) seifs
Answer:
(a) limestone caves

Question 11.
Stalactites grow ………….. .
(a) downwards
(b) upwards
(c) sidewards
(d) fast
Answer:
(a) downwards

Question 12.
The ground water levels sink down in …………… season.
(a) summer
(b) winter
(c) rainy
(d) spring
Answer:
(a) summer

Question 13.
…………… is formed as a result of the depositional work of the sea waves.
(a) Sea cliff
(b) Lagoon
(c) Wave-cut platform
(d) Sea cave
Answer:
(b) Lagoon

Question 14.
The landforms developed in limestone areas are also called as …………… landforms.
(a) lime
(b) sinkhole
(c) krast
(d) coastal
Answer:
(c) krast

Match the Columns:

(1) River

Answer:
(1 – b),
(2-a)

(2) Glacier

Answer:
(1 – c),
(2 – b)

(3) Wind

Answer:
(1 – b),
(2 – a)

(4)

Answer:
(1 – c),
(2 – b)

(5)

Answer:
(1 – b),
(2 – c)

Answer in one sentence:

Question 1.
Name the agents of erosion.
Answer:
The agents of erosion are wind, rivers, glaciers, sea waves and ground water.

Question 2.
What factors does the work of a river depend on?
Answer:
The works of river depends on the nature of rock, the slope of land, velocity of the flow and the volume of water.

Question 3.
What are the important phases of a river’s work?
Answer:
The important phases of a river’s work are erosion, transportation and deposition.

Question 4.
What factors does the work of glaciers depend on?
Answer:
The work of glacier depends on the thickness of the accumulated ice, the temperature, and the slope of the land.

Question 5.
Which landforms are created due to the processes of erosion by the river?
Answer:
Landforms like gorges, V-shaped valleys, potholes and waterfalls are created due to the processes of erosion by the river.

Question 6.
Which landforms are formed mainly due to the transportational and depositional work of a river?
Answer:
Due to the transportational and depositional work of a river, meanders, ox-bow lakes, flood levees, flood plains and delta regions are formed.

Question 7.
Which landforms are created as a result of the erosional work of a glacier?
Answer:
The landforms such as a cirque, arete and matterhorn, U-shaped valley, hanging valleys, etc. are created as a result of the erosional work of a glacier.

Question 8.
Name the landforms formed by the depositional work of glaciers.
Answer:
The landforms formed by the depositional work of glaciers are drumlins, eskers etc.

Question 9.
Name the types of moraine.
Answer:
Ground moraine, lateral moraine, medial moraine and terminal moraine are the different types of moraine.

Question 10.
Which landforms are created as a result of the erosional work of the wind?
Answer:
The landforms like mushroom rocks, deflation hollows, yardangs etc. are created as a result of the erosional work of the wind.

Question 11.
Which landforms are created as a result of the transportation and depositional work of the wind?
Answer:
Sand dunes, barchans, seif, ripple marks, and loess plains are created as a result of transportation and depositional work of the wind.

Question 12.
Which landforms are produced as a result of the erosional work of sea waves?
Answer:
The landforms like sea cliffs, sea caves, wave-cut platforms, sea arches and sea stacks are produced as a result of the erosional work of sea waves.

Question 13.
Mention the landforms created due to the transportation and depositional work of sea waves.
Answer:
Beaches, sand bars and lagoons are created due to the transportation and depositional work of sea waves.

Fill the map with the given information and make a legend.

(1) Konkan Coast where work of sea waves can be seen
(2) Region in India where work of glaciers can be seen
(3) Desert region in India where work of wind can be seen
Answer:

Give geographical reasons:

Question 1.
Like the river, a glacier too carries out the work of erosion, transportation and deposition.
Answer:

• In regions, where the temperatures are generally below freezing points, precipitation is in the form of snowfall.
• Layers of snow accumulate on the earth’s surface because of snowfall.
• The heavy weight of these overlying layers makes the snow move along the slope.
• At the base of the layer, the snow starts melting because of the friction and the pressure from above. Glacier starts moving slowly along the slope.
• Thus like the river, a glacier too carries out the work of erosion, transportation and deposition.

Question 2.
Specific landforms are formed due to deposition by wind in arid and semi arid regions.
Answer:

• Sand particles that blow with the winds are of different shapes and sizes.?
• Those particles which are very fine are carried to larger distances while the larger ones get transported to shorter distances only.
• These sand particles get deposited in deserts and semi-arid climates.
• As a result, specific landforms are formed.
• Sand dunes, barchans, seifs, ripple marks, loess plains, etc. are formed by deposition by wind.

Question 3.
The work of sea waves cause different landforms.
Answer:

• In coastal areas, the sea waves carry out erosional, depositional and transportational work.
• Winds and tides cause the movements of sea water. As a result, waves come to the coast.
• Because of their hitting the rocks at the coasts, erosion of the rocks occurs.
• The landforms like wave cut platforms, sea caves, sea arches, sea cliffs, etc. are formed because of the erosional work of the waves.
• The landforms like beaches, sand bar, lagoons are formed due to depositional work of the sea waves.

Question 4.
In the desert, the work of wind is effective.
Answer:

• The work of wind is predominantly found in the hot desert and semi-arid regions.
• Hot deserts are found close to the Tropic of Cancer and Tropic of Capricorn.
• The average annual rainfall in the hot deserts is 250 mm or even less. Therefore, the vegetal cover is negligible.
• As there are no obstacles due to lack of vegetal cover, the work of wind is effective in the desert.

Question 5.
Glaciers have a low velocity.
Answer:

• In the high altitude areas and the areas of high elevation, the ice slides down the slope. Such a sliding mass of ice is called a glacier.
• As the ice moving in a glacier is in the solid state, its velocity is very low.
• The thickness of the accumulated ice, the temperature and the slope of the land are the factors that determine the velocity of the glacier.

Question 6.
The ground water level changes according to seasons.
Answer:

• The upper level of the stored ground water is called ground water level.
• It varies according to the slope of the land, porosity and compactness of the rocks and the rainfall in the region.
• Ground water level also changes according to season.
• In the rainy season, it is closer to the ground surface whereas during summer, it drops down deeper.

Identify the land forms made by waves and write their names in the given picture.

Answer:

• Wave-cut platform
• Lagoon
• Beach
• Sea cave
• Sea arch
• Sea stack
• Sea cliff

Write the name of the landforms with which the following diagrams are associated. Colour the eroded and the remaining part, if any, in the given diagrams.

Answer:
(a) Mushroom Rock
(b) Sand Dune (Barchan)
(c) Yardangs
(d) Seif (Sand Mounds)

Identify the landforms formed by groundwater in the given diagram.

Answer:
Stalactite and Stalagmite cave.

Answer the following questions in brief:

Question 1.
List the agents responsible for new landforms. i
Answer:
The agents – running water (river), glaciers, wind, sea waves and groundwater, – do the work of erosion, transportation and deposition. Because of these agents, the earth’s surface keeps undergoing changes and new landforms are formed.
(i) Running water (river):

• The river beds, as well as the banks of a river, are eroded due to the speedy flowing stream of water. The load that a river carries also erodes the banks and the bed of the river.
• The rocks, stones, sand, etc. collide with one another and break into fragments
• Different landforms like gorge, V-shaped valley, pothole and waterfall are formed due to the erosional work of a river.

(ii) Glaciers:

• As a glacier is nothing but a solid mass of ice, its velocity is very low. Nevertheless, the mass of water in the solid form is quite high. Therefore, glaciers cause a considerable amount of erosion.
• The glaciers erode the ice-clad base of the mountain slopes and the snow-clad sides of the mountains to a large extent.
• The Cirque, Arete and horn, U-Shaped valley and hanging valley are the landforms formed by the erosional work of a glacier.

(iii) Wind:

• The wind carries sand and pebbles.
• When they strike and scratch the rocks, the elevated and basal parts of the rocks get eroded.
• Due to the erosional processes of the wind, deflation hollows, mushroom rocks and yardangs3 are formed.

(iv) Sea waves:

• The basal portions of the headlands get severely eroded due to the continuous attack of sea waves. This leads to the erosion of the rocks on a large scale.
• Rocky coasts are formed where the headlands get severely eroded.
• Landforms such as sea cliffs, sea caves, wave- cut platforms, sea arches and sea stacks are formed due to the erosional work of sea waves.

(v) Groundwater:

• Soluble minerals in the rocks dissolve in water and they move along with the ground water. This process is called erosion by ground water.
• The work of ground water is predominant in the region where rock like limestone is found on a large scale.
• Limestone dissolves in carbonic acid. Carbonic acid is formed due to the presence of carbon? dioxide in ground water. This acid dissolves carbonates like limestone. Thus, chemical weathering takes place.
• The landforms like sinkholes and caves are the result of the erosional work of groundwater.

Question 2.
List the landforms that are produced due to deposition of sediments by rivers.
Answer:
Landforms like flood levees, flood plains, deltas are formed because of deposition of sediments,

1. Flood levees: When in flood, the river deposits ; the coarser material on the banks which in duecourse rises parallel to the banks of the river. These are called ‘flood levees’.
2. Flood plains: The finer silt deposited away from the banks during the flood form plains on ! either side of the river. They are called ‘flood plains’.
3. Delta: The continuous deposition leads to the formation of a plain in the shape of a triangle called delta. Extensive deltas have been formed ! at the mouth of rivers Ganga, Godavari, Kaveri.

Question 3.
Write in detail about the erosional and depositional work of wind.
Answer:
(i) Erosional work of winds:

• Wind carries small sand particles, small pebbles, etc. along with it.
• These particles cause erosion along rocks coming in the way due to friction.
• This leads to formation of mushroom rocks, deflation hollows, yardangs, etc.

(ii) Depositional work of winds:

• Sand particles that blow with the winds are of different shapes and sizes.
• Those particles which are very fine are carried to larger distances while the larger ones get transported to shorter distances only.
• These sand particles get deposited in deserts and semi-arid climates. As a result, specific landforms are formed.
• Sand dunes, barchans, seifs, ripple marks, loessplains, etc. are formed by deposition by wind.

Question 4.
Write in detail about the erosional and depositional work of sea waves.
Answer:
(i) Erosional work of sea waves:

• When the waves break at the coast, they bring with them water, transported stones, pebbles,sand particles, etc. This leads to the erosion of the coast.
• Because of the chemical and hydraulic action of the sea wave too, the erosion occurs. The landforms like wavecut platforms, sea caves, sea arches, sea cliffs, etc. are formed because of the erosional work of the waves.

(ii) Depositional work of sea waves:

• The eroded materials accumulate at the sea bed. Because of tides, they keep on moving towards the coast and away from the coast.
• They become fine because of attrition and hitting towards each other.
• Deposition of such materials occurs at the places where the effect of waves is less. The landforms like beaches, sand bar, lagoons are formed due to the depositional work of the sea waves.

Explain:

Question 1.
Erosional work of rivers
Answer:

• The rivers originate at a much higher altitude from the sea level.
• Here, the river flows at a great speed and therefore, its power to erode is great.
• The riverbed and the river banks get eroded because of the speedy flow of the river, sand particles, pebbles. Also, various tributaries join the main river.
• All these lead to the formation of gorges (canyons), V-shaped valleys and waterfalls.

Question 2.
Transportation and deposition by rivers
Answer:

• A river flows down the slope from a hilly region.
• At the foothills, the change in the slope causes deposition of coarse sediments.
• As these are deposited in a triangular shape, they form an alluvial fan. As the steepness of the slope decreases and the transport capacity of the river reduces, it starts flowing slowly.
• It bends (meanders) often in its way in an effort to cross even small obstacles.
• By the time the river reaches the sea, its riverbed becomes very wide and its speed becomes very slow.
• The sediments of the river get deposited in its bed and on its banks. The factors that determine the deposition of sediments are thelength of the rivers, volume of water, amountof sediments, and the slope of the river and the earth’s surface.
• Thus, landforms like flood levees, flood plains,deltas are formed because of deposition of sediments.

Question 3.
Erosion work by glaciers
Answer:

• Though the velocity of glaciers is less, the mass of the ice is more and hence the glacier erodes its own banks and its bed on a large scale.
• The erosional work of glaciers produces landforms like cirques, aretes, horns, U-shaped valleys, hanging valleys and roche moutonnees (or sheepbacks).

Question 4.
Transportation and deposition by glaciers
Answer:

• The glaciers carry sediments with them. These sediments are called moraines.
• Depending on the location of the deposits, moraines can be divided into 4 types: ground moraines, lateral moraines, medial moraines and terminal moraines.
• The depositional work of glacier produces landforms like drumlins, eskers, etc.

Question 5.
Erosional and depositional work of wind
Answer:

• Erosional work of wind: Wind carries smallsand particles, small pebbles, etc. along with I it. These particles cause erosion along rockscoming in the way due to friction.
• This leads to formation of mushroom rocks, deflation hollows, yardangs, etc.
• Depositional work of winds: Sand particles that blow with the winds are of different shapes and sizes.
• Those particles which are very fine are carried to larger distances while the larger ones get transported to shorter distances only.
• These sand particles get deposited in deserts ; and semi-arid climates. As a result, specific landforms are formed.
• Sand dunes, barchans, seifs, ripple marks, loess plains, etc. are formed by deposition by wind.

Question 6.
Erosional work of sea waves
Answer:

• When the waves break at the coast, they bring with them water, transported stones, pebbles, sand particles, etc.
• This leads to the erosion of the coast. Because of the chemical and hydraulic action of the sea wave too, the erosion occurs.
• The landforms like wave cut platforms, sea caves, sea arches, sea cliffs, etc. are formed because of the erosional work of the waves.

Question 7.
Depositional work of sea waves
Answer:

• The eroded materials accumulate at the sea bed.
• Because of tides, they keep on moving towards the coast and away from the coast.
• They become fine because of attrition and hitting towards each other. Deposition of such materials occurs at the places where the effect of waves is less.
• The landforms like beaches, sand bar, lagoons are formed due to depositional work.

Question 8.
Work of groundwater and landforms
Answer:

• The rainwater seeps below the earth’s surface through porous rocks or the cracks in the rocks.
• This water accumulates at the non-porous layer of the rock. This accumulated water is called groundwater.
• The soluble minerals in the water get dissolved and flow with the groundwater. This is the erosional work of the groundwater.
• When the groundwater evaporates or the volume of soluble minerals is more than the solubility of the groundwater, the deposition of dissolved materials starts.
• Landforms like sinkholes, limestone caves, stalactites and stalagmites are formed.
• Thus, the groundwater carries out the erosion, transportation and depositional work.

Question 9.
Groundwater table
Answer:

• The upper surface of the water accumulated below the ground is called the ground water table.
• Factors like seasons, porosity of rocks, amount of rainfall, etc. affect the level of water table.
• The water table is closer to the ground during rainy seasons while it is deeper in the summers.?

Balbharti Maharashtra State Board Class 9 Science Solutions Chapter 2 Work and Energy Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Science Solutions Chapter 2 Work and Energy

Class 9 Science Chapter 2 Work and Energy Textbook Questions and Answers

1. Write detailed answers?

a. Explain the difference between potential energy and kinetic energy.
Answer:

b. Derive the formula for the kinetic energy of an object of mass m, moving with velocity v.
Answer:
Suppose a stationary object of mass ‘m’ moves because of an applied force. Let ‘u’ be its initial velocity (here u = 0). Let the applied force be ‘F’. This generates an acceleration a in the object, and after time T, the velocity of the object becomes equal to ‘v’. The displacement during this time is s. The work done on the object is
W = F x s ……………….. (1)
Using Newton’s 2nd law of motion,
F = ma ……………….. (2)
Using Newton’s 2nd equation of motion
\(s=u t+\frac{1}{2} a t^{2}\)
However, as initial velocity is zero, u = 0

c. Prove that the kinetic energy of a freely falling object on reaching the ground is nothing but the transformation of its initial potential energy.
Answer:
Let us look at the kinetic and potential energies of an object of mass (m), falling freely from height (h), when the object is at different heights.

As shown in the figure, the point A is at a height (h) from the ground. Let the point B be at a distance V, vertically below A. Let the point C be on the ground directly below A and B. Let us calculate the energies of the object at A, B and C.

(1) Let the velocity of the object be v_B when it reaches point B, having fallen through a distance x.

(2) When the object is stationary at A, its initial velocity is u = 0
∴ K.E = 1/2 mass x velocity2

(3) Let the velocity of the object be vc when it reaches the ground, near point C.

From equations (i) and (iii) we see that the total potential energy of the object at its initial position is the same as the kinetic energy at the ground.

d. Determine the amount of work done when an object is displaced at an angle of 300 with respect to the direction of the applied force.
Answer:
When an object is displaced by displacement ‘s’ and by applying force ‘F’ at an ’angle’ 30°. work done can be given as

e. If an object has 0 momenta, does it have kinetic energy? Explain your answer.
Answer:

• No, it does not have kinetic energy if it does not have momentum.
• Momentum is the product of mass and velocity. If it is zero, it implies that v = 0 (since mass can never be zero).
• Now K.E = ~ mv2, So if v = 0 then K.E also will be zero.
• Thus, if an object has no momentum then it cannot possess kinetic energy.

f. Why is the work done on an object moving with uniform circular motion zero?
Answer:

• In uniform circular motion, the force acting on an object is along the radius of the circle.
• Its displacement is along the tangent to the circle. Thus, they are perpendicular to each other.
  Hence θ = 90° and cos 90 = θ
  ∴ W = Fs cos θ = 0

2. Choose one or more correct alternatives.

a. For work to be performed, energy must be ….
(i) transferred from one place to another
(ii) concentrated
(iii) transformed from one type to another
(iv) destroyed

b. Joule is the unit of …
(i) force
(ii) work
(iii) power
(iv) energy

c. Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?
(i) the horizontal applied force
(ii) gravitational force
(iii) reaction force in vertical direction
(iv) force of friction

d. Power is a measure of the …….
(i) the rapidity with which work is done
(ii) amount of energy required to perform the work
(iii) The slowness with which work is performed
(iv) length of time

e. While dragging or lifting an object, negative work is done by
(i) the applied force
(ii) gravitational force
(iii) frictional force
(iv) reaction force

3. Rewrite the following sentences using a proper alternative.

a. The potential energy of your body is least when you are …..
(i) sitting on a chair
(ii) sitting on the ground
(iii) sleeping on the ground
(iv) standing on the ground
Answer:
(iii) sleeping on the ground

b. The total energy of an object falling freely towards the ground …
(i) decreases
(ii) remains unchanged
(iii) increases
(iv) increases in the beginning and then decreases
Answer:
(iii) increases

c. If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ….
(i) will be twice its original energy
(ii) will not change
(iii) will be 4 times its original energy
(iv) will be 16 times its original energy.
Answer:
(ii) will not change

d. The work done on an object does not depend on ….
(i) displacement
(ii) applied force
(iii) initial velocity of the object
(iv) the angle between force and displacement.
Answer:
(iii) initial velocity of the object

4. Study the following activity and answer the questions.

1. Take two aluminium channels of different lengths.
2. Place the lower ends of the channels on the floor and hold their upper ends at the same height.
3. Now take two balls of the same size and weight and release them from the top end of the channels. They will roll down and cover the same distance.

Questions
1. At the moment of releasing the balls, which energy do the balls have?
2. As the balls roll down which energy is converted into which other form of energy?
3. Why do the balls cover the same distance on rolling down?
4. What is the form of the eventual total energy of the balls?
5. Which law related to energy does the above activity demonstrate? Explain.
Answer:
1. At the moment of releasing the ball they possess Potential energy as they are at a height above the ground.
2. As the balls roll down, the Potential energy is converted into Kinetic energy since they are now in motion.
3. Since they have been released from the same height, they will cover the same distance.
4. The eventual form of the total energy of the balls is “Mechanical Energy” i.e, a combination of Potential energy and Kinetic energy
5. The above activity demonstrates the “Law of Conservation of Energy”

5. Solve the following examples.

a. An electric pump has 2 kW power. How much water will the pump lift every minute to a height of 10 m? (Ans : 1224.5 kg)
Answer:
Given:
Power (P) = 2 kW = 2000 W
Height (h) = 10 m
Time (t) = 1 min = 60 s
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Mass of water (m)= ?
Formula:

Water lifted by the pump is 1224.5 kg

b. If the energy of a ball falling from a height of 10 metres is reduced by 40%, how high will it rebound? (Ans : 6 m)
Answer:
Given: Initial height (h₁) = 10m
Let Initial (P.E₁) = 100
Final (P.E₂) = 100 – 40
= 60

To Find:
Final height (h₂) = ?
Formula:
P.E. = mgh
Solution:

The ball will rebound by 6 m.

d. The velocity of a car increase from 54 km/hr to 72 km/hr. How much is the work done if the mass of the car is 1500 kg? (Ans. : 131250 J)
Answer:


Work done to increase the velocity = 131250 J

e. Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi? (Ans: 3 J)
Answer:
Given:
Force (F) = 10 N
θ = 0°, (Since force and displacement are in same direction)
Displacement (s) = 30 cm = 30/100 m
To Find:
Work (W) = ?
Formula:
W = Fs cos θ
Solution:
W = Fs cos θ
Solution:
The work done by Ravi is 3J

Numericals For Practice

Class 9 Science Chapter 1 Laws of Motion Intext Questions and Answers

Question 1.
What are different types of forces? Give examples.
Answer:
Forces are of two types.

• Contact force e.g.: Mechanical force, frictional force, muscular force
• Non-contact force e.g.: gravitational force, magnetic force, electrostatic force

Question 2.
Monashee wants to displace a wooden block from point A to point B along the surface of a table as shown. She has used force F for the purpose.

(a) Has all the energy she spent been used to produce an acceleration in the block?
(b) Which forces have been overcome using that energy?
Answer:
(a) Only part of the energy applied by Minakshee is used in accelerating the block.
(b) Force of friction has been overcome using the energy.

Question 3.
Mention the type of energy used in the following examples.
(i) Stretched rubber string.
(ii) Fast-moving car.
(iii) The whistling of a cooker due to steam.
(iv) A fan running on electricity.
(v) Drawing out pieces of iron from garbage, using a magnet.
(vi) Breaking of a glass window pane because of a loud noise.
(vii) The drackers exploded in Diwali.
Answer:
(i) Potential energy
(ii) Kinetic energy
(iii) Sound energy
(iv) Electrical energy
(v) Magnetic energy
(vi) Sound energy
(vii) Sound energy, light energy and heat energy

Question 4.
Study the pictures given below and answer the questions:

(a) In which of the pictures above has work been done?
(b) From scientific point of view, when do we say that no work was done?
Answer:
(a) Girl studying : No work done
Boy playing with ball: Work is done
Girl watching T.V.: No work done Person lifting sack of grains : Work is done
(b) No work is said to be done when force is applied but there is no displacement.

Question 5.
Make two pendulums of the same length with the help of thread and two nuts. Tie another thread in the horizontal position.

Tie the two pendulums to the horizontal thread in such a way that they will not hit each other while swinging. Now swing one of the pendulums and observe. What do you see?

Answer:
You will see that as the speed of oscillation of the pendulum slowly decreases, the second pendulum which was initially stationary, begins to swing. Thus, one pendulum transfers its energy to the other.

Question 6.
Ajay and Atul have been asked to determine the potential energy of a ball of mass m kept on a table as shown in the figure. What answers will they get? Will they be different? What do you conclude from this?

Answer:

• According to Ajay P.E₁ = mgh₁ and according to Atul P.E₂ = mgh₂.
• Yes, the answer will be different as the two heights are different.
• Potential energy is relative.

Question 7.
Discuss the directions of force and of displacement in each of the following cases.
(i) Pushing a stalled vehicle.
(ii) Catching the ball which your friend has thrown towards you.
(iii) Tying a stone to one end of a string and swinging it round and round by the other end of the string.
(iv) Walking up and down a staircase; climbing a tree.
(v) Stopping a moving car by applying brakes.
Answer:
(i) Force and displacement are in the same direction.
(ii) Force and displacement are in the opposite direction.
(iii) Force and displacement are perpendicular to each other.
(iv) Force and displacement are in the opposite direction.
(v) Force and displacement are in the opposite direction.

Question 8.
(A) An arrow is released from a stretched bow.
(B) Water kept at a high flows through a pipe into the tap below.
(C) A compressed spring is released.
(a) Which words describe the state of the object in the above examples?
(b) Where did the energy required to cause the motion of the objects come from?
(c) If the obj ects were not brought in those states, would they have moved?
Answer:
(a) Words such as stretched bow, water kept at a height and compressed spring describe the state of the objects.
(b) The energy required for the objects came from its specific state or motion in the form of potential energy.
(c) No, if the objects were not brought in those states, they would have not moved.

Question 9.
Study the activity and answer the following questions.

(a) Figure A – Why does the cup get pulled?
(b) Figure B – What is the relation between the displacement of the cup and the force applied through the ruler?
(c) In Figure C-Why doesn’t the cup get displaced?
(d) What is the type of work done in figures A, B and C?
(e) In the three actions above, what is the relationship between the applied force and the displacement?
Answer:
(a) The cup gets pulled as the force of the nut and the displacement of the cup is in the same direction.
(b) The displacement of the cup and the force applied through the ruler is in the opposite direction.
(c) Tire cup does not get displaced as two equal forces are working in opposite directions.
(d) The work done in figure A is positive, figure B is negative and in figure C is zero.
(e) In figure A the applied force and the displacement is in the same direction, in figure B the applied force and the displacement is in the opposite direction and in figure C the applied force and displacement is perpendicular to each other.

Question 10.
From the following activities find out whether work is positive, negative or zero. Give reasons for your answers.
(a) A boy is swimming in a pond.
(b) A coolie is standing with a load on his head.
(c) Stopping a moving car by applying brakes.
(d) Catching the ball which you friend has thrown towards you.
Answer:
(a) A boy is swimming in a pond: The work done is positive because the direction of applied force and displacement are the same.
(b) A coolie is standing with a load on his head: The work done is zero because the applied force does not cause any displacement.
(c) Stopping a moving car by applying brakes: The work done is negative because the fore applied by the brakes acts in a direction opposite to the direction of motion of car.
(d) Catching the ball which you friend has thrown towards you : Negative work because the force required to stop the ball, acts opposite to the displacement of the ball.

Question 11.
(a) Can your father climb stairs as fast as you can?
(b) Will you fill the overhead water tank with the help of a bucket or an electrical motor?
(c) Suppose Raj ashree, Yash and Ranjeet have to reach the top of a small hill. Raj ashree went by car. Yash went cycling while Ranjeet went walking. If all of them choose the same path, who will reach first and who will reach last? (Think before you answer.
Answer:
(a) No, father takes more time to climb stairs.
(b) Overhead water tank can be filled with the help of one electric motor rather than filling it with bucket.
(c) Raj ashree will reach first, followed by Yash and Ranjeet will reach last because car moves faster than a cycle and a person walking.

Class 9 Science Chapter 1 Laws of Motion Additional Important Questions and Answers

1. Choose and write the correct option:

Question 1.
Forces are of …………………… types.
(a) 2
(b) 3
(c) 4
(d) 5
Answer:
(a) 2

Question 2.
Example of Contact force is ………………….. .
(a) Gravitational Force
(b) Magnetic Force
(c) Electrostatic Force
(d) Muscular Force
Answer:
(d) Muscular Force

Question 3.
Example of Non-contact force is ………………….. .
(a) Mechanical Force
(b) Frictional Force
(c) Muscular Force
(d) Electrostatic Force
Answer:
(d) Electrostatic force

Question 4.
Work is said to be done on a body when a …………………… is applied on object causes displacement of the object.
(a) Direction
(b) Area
(c) Volume
(d) Force
Answer:
(d) force

Question 5.
W = ………………. .
(a) mgh
(b) mdh
(c) mv²
(d) mfe
Answer:
(a) mgh

Question 6.
The energy stored in the dry cell is in of ………………. energy.
(a) Light
(b) Chemical
(c) Solar
(d) Kinetic
Answer:
(b) chemical

Question 7.
The work done is zero if there is no ……………… .
(a) Direction
(b) Displacement
(c) Mass
(d) Angle
Answer:
(b) displacement

Question 8.
Flowing water has ………………. energy.
(a) Potential
(b) Chemical
(c) Solar
(d) Kinetic
Answer:
(d) kinetic

Question 9.
By stretching the rubber strings of a we store ………………. energy in it.
(a) Potential
(b) Chemical
(c) Electric
(d) Kinetic
Answer:
(a) potential

Question 10.
………………. is the unit of force.
(a) Both B and C
(b) Newton
(c) Dyne
(d) Volts
Answer:
(a) Both B and C

Question 11.
For a freely falling body, kinetic energy is ………………. at the ground level.
(a) Maximum
(b) Minimum
(c) Neutral
(d) Reversed
Answer:
(a) Maximum

Question 12.
Energy can neither be ………………. nor ……………… .
(a) Destroyed
(b) Created
(c) Saved
(d) Both A and B
Answer:
(d) Both A and B

Question 13.
Work and …………………… have the same unit.
(a) Energy
(b) Electricity
(c) Force
(d) Both B and C
Answer:
(a) Energy

Question 14.
S.I. unit of energy is ………………….. .
(a) Joule
(b) Ergs
(c) m/s²
(d) Both A and B
Answer:
(a) Joule

Question 15.
Work is the product of ………………….. .
(a) force and distance
(b) displacement and velocity
(c) kinetic and potential energy
(d) force and displacement
Answer:
(d) force and displacement

Question 16.
S.I. unit of work is ………………….. .
(a) dyne
(b) newton-meter or erg
(c) N/m2 or joule
(d) newton-meter or joule
Answer:
(d) newton-meter or joule

Question 17.
…………………… is the capacity to do work.
(a) Energy
(b) Force
(c) Power
(d) Momentum
Answer:
(a) Energy

Question 18.
Kinetic energy of a body (KE) = ………………….. .
(a) mv²
(b) ¹/₂ mv²
(c) mgh
(d) Fs
Answer:
(b) ¹/₂ mv²

Question 19.
Potential energy of a body is given by (P.E.) = ………………….. .
(a) Fs
(b) mgh
(c) ma
(d) mv²
Answer:
(b) mgh

Question 20.
1 hp = ………………….. .
(a) 476 watts
(b) 746 watts
(c) 674 watts
(d) 764 watts
Answer:
(b) 746 watts

Question 21.
…………………… is the commercial unit of power.
(a) kilowatt second
(b) dyne
(c) kilowatt
(d) erg
Answer:
(c) kilowatt

Question 22.
1 kWh = …………………… joules.
(a) 3.6 x 10³
(b) 3.6 x 10⁶
(c) 6.3 x 10⁶
(d) 6.3 x 10³
Answer:
(b) 3.6 x 10⁶

Based on Practicals

Question 23.
The work done by a force is said to be …………………… when the applied force does not produce displacement.
(a) positive
(b) negative
(c) zero
(d) none of these
Answer:
(c) zero

Question 24.
When some unstable atoms break up, they release a tremendous amount of …………………… energy.
(a) chemical
(b) potential
(c) nuclear
(d) mechanical
Answer:
(c) nuclear.

Name the following:

Question 1.
Unit of energy used for commercial purpose.
Answer:
Kilowatt-hour kW h is the unit of energy used for commercial purpose.

Question 2.
Unit used in industry to measure power.
Answer:
Horse power (hp) is the unit used in industry to express power.

Question 3.
SI unit of energy.
Answer:
SI unit of energy is Joule (J).

Question 4.
Two types of mechanical energy.
Answer:
Potential energy and kinetic energy are the two types of mechanical energy.

Question 5.
An example where force acting on an object does not do any work.
Answer:
In a simple pendulum, the gravitational force acting on the bob does not do any work as there is no displacement in the direction of force.

Question 6.
The relationship between 1 joule and 1 erg.
Answer:
1 joule = 107 erg.

Question 7.
Various forms of energy
Answer:
The various forms of energy are mechanical, heat, light, sound, electro-magnetic, chemical, nuclear and solar.

State whether the following statements are true or false:

(1) The potential energy of a body of mass 1 kg kept at height 1 m is 1 J.
(2) Water stored at some height has potential energy.
(3) Unit of power is joule.
(4) Mechanical energy can be converted into electrical energy.
(5) Work is a vector quantity.
(6) Power is a scalar quantity.
(7) The kilowatt hour is the unit of energy.
(8) The CGS unit of energy is dyne.
(9) The SI unit of work is newton.
(10) Kinetic energy has formula – mv²
Answer:
(1) False
(2) True
(3) False
(4) True
(5) False
(6) True
(7) True
(8) False
(9) False
(10) True

Find the odd man out.

Question 1.
Work, Energy, Power, Force.
Answer:
Force.

Question 2.
A stretched spring, A body placed in at some height, A bullet fired from gun.
Answer:
A bullet fired from gun.

Question 3.
A stretched spring, A rock rolling downhill, A bullet fired from gun.
Answer:
A stretched spring.

Write the formula of the following.

Question 1.
Kinetic energy
Answer:
\(\frac{1}{2}\)mv²

Question 2.
Potential energy
Answer:
mgh

Question 3.
Work
Answer:
Fs or Fs cosθ

Question 4.
Force
Answer:
ma

Question 5.
Power
Answer:
\(\frac{w}{1}\)

One line answer.

Question 1.
(i) When is work done said to be zero?
Answer:
Work done is zero when force acting on the body and its displacement are perpendicular to each other.

(ii) Which quantities are measured in ergs?
Answer:
Work and energy are measured in ergs.

(iii) What is the relationship between newton, meter and joule?
Answer:
1 joule = 1 newton x 1 meter

(iv) What is energy?
Answer:
The ability of a body to do work is called energy.

(v) Give 4 examples of energy
Answer:
Solar, wind, mechanical and heat.

(vi) Which device converts electrical energy into heat?
Answer:
Electric water heater (Geyser) converts electrical energy into heat.

(vii) What is the relationship between second, horsepower and joule?
Answer:
1 horse power = \(\frac{746 \text { joules }}{1 \text { second }\)

Question 2.
Find whether work is positive, negative or zero.

(a) Person moving along circle from A to B.
Answer:
Work done is positive as direction of applied force and displacement are the same.

(b) Person completing one circle and returns to position A.
Answer:
Work done is zero because there is no displacement for the person.

(c) Person pushing a car in the forward direction.
Ans,
Work done is positive as the motion of car is in the direction of the applied force.

(d) A car coming downhill even after pushing it in the opposite uphill direction.
Ans,
Work done is negative as the motion of car is in opposite direction of the applied force.

(e) Motion of the clock pendulum.
Answer:
work done is zero as there is no displacement of the pendulum and it comes back to its original position.

Give Scientific reasons:

Question 1.
A moving ball hits a stationary ball and displaces it.
Answer:

• The moving ball has certain energy.
• When it hits the stationary ball, the energy is transferred to the stationary ball, because of which it moves.
• Hence, a moving ball hits a stationary ball and displaces it.

Question 2.
Flowing water from some height can rotate turbine.
Answer:

• Flowing water has certain energy.
• When it hits the turbine, energy is transferred to the turbine, because of which it rotates.
• Hence, flowing water from some height can rotate a turbine.

Question 3.
A stretched rubber band when released regains its original length.
Answer:

• When we stretch a rubber band we give energy to it.
• This energy is stored in it.
• Hence, when we release it, it regains its original length.

Question 4.
Wind can move the blades of a windmill.
Answer:

• Wind has certain energy.
• When it hits the windmill energy is transferred to the windmill because of which it moves.
• Hence, wind can move the blades of a wind mill.

Question 5.
An exploding firecracker lights up as well as makes a sound.
Answer:

• The exploding firecracker converts the chemical energy stored in it into light and sound respectively.
• Here, energy is converted from one type to another.
• Hence, an exploding firecracker lights as well as makes a sound.

Question 6.
Work done on an artificial satellite by gravity is zero while moving around the earth.
Answer:

• When the artificial satellite moves around the earth in a circular orbit, gravitation force acts on it.
• The gravitational force acting on the satellite and its displacement are perpendicular to each other. i.e. 0 = 90°
• For 0 = 90°, work done is zero. [ v cos 90 = 0)
• Hence, work done on an artificial satellite by gravity is zero while moving around the earth.

Difference between :

Question 1.
Work and Power:
Answer:

Question 2.
Work and Energy:
Answer:

Solve the following:

Type – A

Formula:
W = Fs cosθ
If force and displacement are in same direction, then θ = 0°, and cos θ = 1
If force and displacement are in opposite direction, then θ = 180°, and cos θ = -1
If force and displacement are perpendiculars, then θ = 90°, and cos θ = 0

Question 1.
Pravin has applied a force of 100 N on an object, at an angle of 60° to the horizontal. The object gets displaced in the horizontal direction and 400 J work is done. What is the displacement of the object? (cos 600 =12)
To Find:
Displacement (s) = ?
Formula:
W = Fs cos θ
Solution:

The object will be displaced through 8 m.

Question 2.
A force of 50 N acts on an object and displaces it by 2 m. If the force acts at an angle of 60° to the direction of its displacement, find the work done.
Answer:
50 J

Question 3.
Raj applied a force of 20 N and moved a book 40 cm in the direction of the force. How much was the work done by Raj?
Answer:
8J

Type -B

Formula:
1) W = K.E = 1/2 mv2
2) W = P.E = mgh
• W = P.E, W = K.E
1 km/hr =
\(\frac{1000}{3600} \mathrm{~m} / \mathrm{s}=\frac{5}{18} \mathrm{~m} / \mathrm{s}\)

Question 4.
A stone having a mass of 250 gm is falling from a height. How much kinetic energy does it have at the moment when its velocity is 2 m/s?
Answer:


The kinetic energy of the stone is 0.5 J

Question 5.
500 kg water is stored in the overhead tank of a 10 m high building. Calculate the amount of potential energy stored in the water.
Answer:
Given:
Mass (m) = 500 kg
Height (h) = 10 m
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Potential energy (P.E) = ?
Formula:
P.E = mgh
Solution:
P.E = mgh
= 500 x 9.8 x 10
= 500 x 98
= 49000J
The P.E of the stored water is 49000 J

Question 6.
Calculate the work done to take an object of mass 20 kg to a height of 10 m. (g = 9.8 m/s²)
Answer:
Given:
Mass (m) = 20 kg
Acceleration due to gravity (g) = -9.8 m/s²
Displacement (s) = (h) = 10 m.
To Find:
Work done (W) = ?
Formula:
(i) W = P.E = mgh
Solution:
W = mgh
= 20 x (-9.8) x 10
= -1960J
The work done to take an object of mass 20 kg to a height of 10 m is -1960 J.

Question 7.
A body of 0.5 kg thrown upwards reaches a maximum height of 5 m. Calculate the work done by the force of gravity during this vertical displacement.
Answer:
Given:
Mass (m) = 0.5 kg
Acceleration due to gravity (g) = -9.8 m/s²
Displacement (s) = 5 m.
To Find:
Work done (W) = ?
Formula:
W = P.E = mgh
Solution:
W = mgh
= 0.5 x (-9.8) x 5
= -24.5 J
The work done by the force of gravity is -24.5 joule.

Question 8.
1 kg mass has a kinetic energy of 2 joule. Calculate its velocity.
Answer:
Given:
Mass (m) = 1 kg
Kinetic Energy (K.E) = 2 J
To Find:
Velocity (v) = ?
Formula:

The velocity is 2 m/s

Question 9.
A rocket of mass 100 tonnes is propelled with a vertical velocity 1 km/s. Calculate kinetic energy.
Answer:

The kinetic energy of the rocket is 5 x 10¹⁰ J

Type – C

Formula:
\(\text { 1) Power }=\frac{\text { work }}{\text { time }}=\frac{\text { mgh }}{t}\)

Power should be expressed in kW
Time should be expressed in hours
1 k Wh = 1 unit

Question 10.
Swaralee takes 20 s to carry a bag weighing 20 kg to a height of 5 m. How much power has she used?
Given:
Mass (m) = 20 kg
Height (h) = 5 m
Time (t) = 20s
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Power (P) = ?
Formula:
\(\mathrm{P}=\frac{\mathrm{mgh}}{\mathrm{t}}\)
Solution:
\(\begin{aligned}
P &=\frac{m g h}{t} \\
&=20 \times 9.8 \times \frac{5}{20} \\
&=9.8 \times 5
\end{aligned}\)
= 49 W
Power used by Swaralee is 49 W

Write notes on the following:

Question 1.
Derive the expression for potential energy.
Answer:
(i) To carry an object of mass ‘m’ to a height ‘h’ above the earth’s surface, a force equal to ‘mg’ has to be used against the direction of the gravitational force.

(ii) The amount of work done can be calculated as follows:
Work = force x displacement
∴ W = mg x h
∴ W = mgh

(iii) The amount of potential energy stored in the object because of its displacement.
PE = mgh (W = P.E)

(iv) Displacement to height h causes energy equal to mgh to be stored in the object.

Question 2.
When can you say that the work done is either positive, negative or zero?
Answer:

• When the force and the displacement are in the same direction, the work done by the force is positive.
• When the force and displacement are in the opposite directions, the work done by the force is negative.
• When the applied force does not cause any displacement or when the force and the displacement are perpendicular to each other, the work done by the force is zero.

Question 3.
Explain the relation between, the commercial and SI unit of energy.
Answer:
The commercial unit of energy is a kilowatt-hour (kWh) while the SI unit of energy is the joule. Their relation is
1 kWh = 1kW x 1hr
= 1000 Wx 3600 s
= 3600000J
(Watt x Sec = Joule)
1 kWh = 3.6 x 106 J.

Question 4.
How is work calculated if the direction of force and the displacement are inclined to each other?
Answer:
If the direction of force and the displacement are inclined to each other then, we must convert the applied force into the force acting along the direction of displacement.

If θ is angle between force and displacement, then force (F₁) in direction of displacement is

Complete the flow chart.

Question 1.
Transformation of energy

Answer:

Question 2.
Transformation of energy

Answer:

Write effects of the following with examples.

Question 1.
Force
Answer:

• A force can move a stationary object. The force of engine makes a stationery car to move.
• A force can stop a moving object. The force of brakes can stop a moving car.
• A force can change the speed of a moving object. When a hockey player hits a moving ball, the speed of ball increases.
• A force can change the direction of a moving object. In the game of carrom ,when we take a rebound then the direction of striker changes because the edge of the carrom board exerts a force on the strike.
• A force can change the shape and size of an object. The shape of kneaded wet clay changes when a potter converts it into pots of different shapes and sizes because the p otter applies force on the kneaded wet clay.

Give two examples in each of the following cases:

Question 1.
Potential energy
Answer:

• Water stored in a dam
• A compressed spring

Question 2.
Kinetic energy
Answer:

• Water flowing
• Bullet fired from a gun

Question 3.
Chemical energy
Answer:

• Chemical in cell
• Explosive mixture of a bomb

Question 4.
Zero work done
Answer:

• A stone tied to a string and whirled in a circular path
• Motion of the earth and other planets moving around the sun

Question 5.
Negative work done
Answer:

• A cyclist applies brakes to his bicycle, but the bicycle still covers some distance.
• When a body is made to slide on a rough surface, the work done by the frictional force.

Question 6.
Positive work done
Answer:
(i) A boy moving from the ground floor to the first floor.
(ii) A fruit falling down from the tree.
= 0.5 hr x 30 days
= 15 hrs
To Find:
Energy consumed = ?

The units of energy consumed in the month of April by the iron is 18 units.

Question 7.
A 25 W electric bulb is used for 10 hours every day. How much electricity does it consume each day?
Answer:
Given:
Power (P) = 25 W
25/1000 kW
Time (E) = 10 hrs
To Find:
Electric energy consumed = ?
Formula:
Electric energy consumed = power x time
Solutions:
Electric energy consumed = power x time
= 25/1000 x 10
= 0.25 kWh
The electric bulb consumes 0.25 kWh of electricity each day.

Question 8.
If a TV of rating 100W is operated for 6 hrs per day, find the amount of energy consumed in any leap year?
Answer:

= 2196 hrs.
To Find:
Electric energy consumed
Formula:
Electric energy consumed = power x time
Solution:
Electric energy consumed = power x time
= 0.1 x 2196
= 219.6 kWh
The amount of energy consumed is 219.6 kWh

Complete the paragraph.

Question 1.
………….. is the measure of energy transfer when a force (F) moves an object through a ………….. (d). So when ………….. is done, energy has been transferred from one energy store to another, and so: energy transferred = ………….. done. Energy transferred and work done are both measured in ………….. (J)
Answer:
Work is the measure of energy transfer when a force (F) moves an object through a distance (d). So when work is done, energy has been transferred from one energy store to another, and so: energy transferred = work done. Energy transferred and work done are both measured in joules (J).

Question 2.
………….. energy and ………….. done are the same thing as much as ………….. energy and work done are the same thing. Potential energy is a state of the system, a way of ………….. energy as of virtue of its configuration or motion, while ………….. done in most cases is a way of channeling this energy from one body to another.
Answer:
Potential energy and work done are the same thing as much as kinetic energy and work done are the same thing. Potential energy is a state of the system, a way of storing energy as of virtue of its configuration or motion, while work done in most cases is a way of channeling this energy from one body to another.

Question 3.
In physics, ………….. is the rate of doing work or, i.e., the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the ………….. equal to one ………….. per second.

Power is a ………….. quantity that requires both a change in the physical system and a specified time interval in which the change occurs. But more ………….. is needed when the work is done in a shorter amount of time.
Answer:
In physics, power is the rate of doing work or, i.e., the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt. equal to one joule per second.

Power is a scalar quantity that requires both a change in the physical system and a specified time interval in which the change occurs. But more power is needed when the work is done in a shorter amount of time.

Activity-based questions

Answer in detail:

Question 1.
State the expression for work done when displacement and force makes an angle θ OR State the expression for work done when force is applied making an angle θ with the horizontal force.

Answer:
Let ‘F’ be the applied force and Fj be its component in the direction of displacement. Let ’S’ be the displacement.

The amount of work done is given by W = F₁s ……………………………………… (1)
The force ‘F’ is applied in the direction of the string.

Let ‘θ’ be the angle that the string makes with the horizontal. We can determine the component ‘F₁‘, of this force F, which acts in the horizontal direction by means of trigonometry.
\(\begin{aligned}
\cos \theta=\frac{\text { base }}{\text { hypotenuse }} \\
\therefore \quad \cos \theta=\frac{\mathrm{F}_{1}}{\mathrm{~F}} \\
\therefore \quad \mathrm{F}_{1}=\mathrm{F} & \cos \theta
\end{aligned}\)
Substituting the value of F₁ in equation 1
Thus, the work done by F₁ is
W cos θ s
∴ W = Fscosθ

Question 2.
When a body is dropped on the ground from some height its P.E is converted into K.E but when it strikes the ground and it stops, what happens to the K.E?
Answer:
When a body is dropped on the ground, its K.E appears in the form of:

• Heat (collision between the body and the ground).
• Sound (collision of the body with the ground).
• The potential energy of change in state of the body and the ground.
• Kinetic energy is also utilized to do work i.e., the ball bounces to a certain height and moves to a certain distance vertically and horizontally till Kinetic energy becomes zero.
• The process in which the kinetic energy of a freely falling body is lost in an unproductive chain of energy is called the dissipation of energy.

Question 3.
Explain the statement “Potential Energy is relative”.
Answer:

• The potential energy of an object is determined and calculated according to a height of the object with respect to the observer.
• So, the person staying on 6th floor more potential energy than those staying on the 3rd floor.
• But, the person on the 6th floor will have lesser potential energy than on the 8th floor. Hence potential energy is relative.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 2 India: Events After 1960 Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 2 India: Events After 1960

Class 9 History Chapter 2 India: Events After 1960 Textbook Questions and Answers

1. A. Choose the correct option from the given option and rewrite the statements:
Question 1.
The Prime Minister of India who took an initiative in resolving the question of the Tamil minority in Sri Lanka was
(a) Rajiv Gandhi
(b) Indira Gandhi
(c) H. D. Deve Gowda
(d) P. V. Narasimha Rao
Answer:
(a) Rajiv Gandhi

Question 2.
is the father of the Green Revolution in India.
(a) Dr. Verghese Kurien
(b) Homi Bhabha
(c) Dr. M. S. Swaminathan
(d) Dr. Norman Borlaug
Answer:
(c) Dr. M. S. Swaminathan

B. Identify and write the wrong pair in the following sets:

Question 1.
(1) Indira Gandhi – Emergency
(2) Rajiv Gandhi – Developments of Science and Technology
(3) P. V. Narasimha Rao – Economic improvements
(4) Chandrashekhar – Mandal Commission
Answer:
Chandrashekhar – Mandal Commission

Question 2A.
Based on the information in the chapter, prepare a chronological chart of Prime Ministers and their tenure.
Answer:

1. Pandit Jawaharlal Nehru -1947 to 1964
2. Lai Bahadur Shastri -1964 to 1966
3. Indira Gandhi -1966 to 1977
4. Morarji Desai -1977 to 1979
5. Charan Singh -1979 to 1980
6. Indira Gandhi -1980 to 1984
7. Rajiv Gandhi -1984 to 1989
8. Vishwanath Pratap Singh – 1989 to 1990
9. Chandra Shekhar -1990 to 1991
10. P. V. Narasimha Rao -1991 to 1996
11. Atal Bihari Vajpayee -1996
12. H.D. Deve Gowda -1996 to 1997
13. Inder Kumar Gujral -1997 to 1998
14. Atal Bihari Vajpayee – 1998 to 2004

2B. Write Short Notes on:

Question 1.
Globalisation
Answer:
(i) Globalisation brought about many changes in different fields like economy, politics, science and technology, society and culture.
(ii) India has emerged as an important country on the global scene in different spheres.
(iii) India is an important member of international organisations like G-20 and ‘BRICS’ (Brazil, Russia, India, China, South Africa).
(iv) India has experienced an important revolution in the field of telecommunication technology.
(v) Mobile phones, internet and the communication facilities based on satellite have spread all across the country.
(vi) It has resulted in a total transformation in the lifestyle of Indians and especially the youth.
(vii) These changes are visible from their dietary habits, clothing, language and beliefs.

Question 2.
White Revolution
Answer:
(i) White Revolution is a major event of India’s efforts towards self-reliance.
(ii) The experiment in co-operative dairy movement by Dr. Verghese Kurien led to the increase of milk production in India.
(iii) This is called as ‘White Revolution’.

3A. Give reasons:

Question 1.
The Morarji Desai government lasted for a short while.
Answer:
(i) On the backdrop of the emergency, many opposition parties came together and formed a party called the Janata Party.
(ii) The Congress party led by Indira Gandhi was roundly defeated by this newly formed ‘Janata Party’.
(iii) Morarji Desai became the Prime Minister, but under his leadership the Janata Party government couldn’t last long due to its internal differences.
(iv) Hence, the Morarji Desai government lasted for a short while.

Question 2.
The army had to be sent into the Golden Temple in Amritsar.
Answer:
(i) The Sikhs in Punjab demanded an independent state of Khalistan and began a movement which went on to become violent and destructive.
(ii) Pakistan had lent its support to this movement.
(iii) Some terrorists had allegedly taken shelter inside the Golden Temple at Amritsar, a holy shrine of the Sikhs in 1984.
(iv) Hence, the Indian army was sent into the Golden Temple in Amritsar to evict the terrorists who had taken shelter there.

Question 3.
The National Planning Commission was set up in India.
Answer:
(i) India wanted to acquire modernity and self-reliance by establishing industries.
(ii) India wanted to establish an economy based on social justice through planning.
(iii) For this, the National Planning Commission was established. This would coordinate development through the policy of Five Year Plans.

B. Answer the following questions in 25 to 30 words.

Question 1.
How was 1991 a year of important changes in the history of the world and of India?
Answer:
(i) The year 1991 is held to be very important in the history of the world as well as India.
(ii) The Soviet Union disintegrated into several different small countries and the Cold War came to an end.
(iii) During this period, the Ram Janmabhumi and Babri Mosque issue at Ayodhya came to the forefront.
(iv) In India, the Government under the leadership of Prime Minister P. V. Narasimha Rao initiated many changes in the Indian economy.
(v) These economic reforms are called as economic liberalisation. The Indian economy flourished as a result of the implementation of this policy.
(vi) Skilled Indian professionals helped reform the Indian economy. The field of information technology opened several avenues of employment in the country.
(vii) The changes after 1991 are also described as ‘globalisation’.

Question 2.
What are the characteristics of the Indian economy?
Answer:
(i) Right from independence, the modernisation of economy, economic self-sufficiency and social justice have been the characteristics of Indian economy.
(ii) India wanted to acquire modernity and self-reliance by establishing industries.
(iii) It wanted to establish an economy based on social justice through planning.
(iv) For this, the National Planning Commission was established that would coordinate development through the policy of Five Year Plans.

4. With the help of the information in the chapter, complete the list of the challenges before India and the strengths of India.
Question 1.

Answer:

Class 9 History Chapter 2 India: Events After 1960 Additional Important Questions and Answers

Choose the correct option from the given option and rewrite the statements:

Question 1.
The war between India and China took place in the year ________.
(a) 1952
(b) 1962
(c) 1972
(d) 1982
Answer:
(b) 1962

Question 2.
The Indo – China war was fought in the region of the _______ line.
(a)
MacMahon
(b) Kashmir
(c) St Lawrence
(d) Me Kinley
Answer:
MacMahon

Question 3.
Jawaharlal Nehru passed away in _________.
(a) 1944
(b) 1974
(c) 1984
(d) 1964
Answer:
(d) 1964

Question 4.
After Jawaharlal Nehru _______ became Prime Minister of India.
(a) Indira Gandhi
(b) Rajiv Gandhi
(c) Lal Bahadur Shastri
(d) Morarji Desai
Answer:
(c) Lal Bahadur Shastri

Question 5.
India and Pakistan went to war over the ________ issue in 1965.
(a) Kashmir
(b) Goa
(c) Hyderabad
(d) Kerala
Answer:
(a) Kashmir

Question 6.
The ______ mediated between the conflicting countries of India and Pakistan.
(a) Soviet Union
(b) USA
(c) Japan
(d) China
Answer:
(a) Soviet Union
(a) Soviet Union

Question 7.
_____ gave the slogan ‘Jai Jawan Jai Kisan’.
(a) Indira Gandhi
(b) Lai Bahadur Shastri
(c) Morarji Desai
(d) Rajiv Gandhi
Answer:
(b) Lai Bahadur Shastri

Question 8.
Lai Bahadur Shastri breathed his last at ______in 1966.
(a) Gorakhpur
(b) Kuala Lumpur
(c) Tashkent
(d) Varanasi
Answer:
(c) Tashkent

Question 9.
A Freedom Movement was led by Sheikh Mujibur Rahman and his organisation, ______.
(a) Mukti Bahini
(b) Bangla Bahini
(c) Aamar Sonar Bangla
(d) East Bengal Front
Answer:
(a) Mukti Bahini

Question 10.
The 1971 war between India and Pakistan led to the creation of an independent country called _______.
(a) Bangladesh
(b) Sri Lanka
(c) Sikkim
(d) Telangana
Answer:
(a) Bangladesh

Question 11.
India successfully carried out an underground test of an atomic device at ______ in Rajasthan.
(a) Dispur
(b) Mannapattam
(c) Sriharikota
(d) Pokhran
Answer:
(d) Pokhran

Question 12.
The ______ High Court gave the verdict in 1974 that Indira Gandhi the then Prime Minister had misused the government machinery during her election campaign.
(a) Allahabad
(b) Bombay
(c) Delhi
(d) Panaji
Answer:
(a) Allahabad

Question 13.
The situation set against Indira Gandhi became more complicated due to the movement led by _________.
(a) Dadabhai Naoroji
(b) Jayprakash Narayan
(c) G. D. Agarkar
(d) Ramanand Tirth
Answer:
(b) Jayprakash Narayan

Question 14.
The period of National Emergency lasted from _______ and after that general elections were conducted.
(a) 1922-24
(b) 1984-87
(c) 1975 – 77
(d) 1987-99
Answer:
(c) 1975 – 77

Question 15.
On the backdrop of the emergency, many opposition parties came together and formed a party called the _______.
(a) Republican Party
(b) Congress Party
(c) Janata Party
(d) Samaj Party
Answer:
(c) Janata Party

Question 16.
________ became Prime Minister on behalf of the Janata Party.
(a) Morarji Desai
(b) Indira Gandhi
(c) Rajiv Gandhi
(d) Lai Bahadur Shastri
Answer:
(a) Morarji Desai

Question 17.
The Sikhs in Punjab demanded an independent state of ______.
(a) Khalistan
(b) Pakistan
(c) Kazakhstan
(d) Baluchistan
Answer:
(a) Khalistan

Question 18.
______ had lent its support to the Khalistan movement.
(a) China
(b) Pakistan
(c) England
(d) Baluchistan
Answer:
(b) Pakistan

Question 19.
An organisation called ________ carried on a major movement in north-east India.
(a) United Liberation Front of Assam
(b) United Communist Group
(c) United India Front
(d) United Assam Federation
Answer:
(a) United Liberation Front of Assam

Question 20.
______ laid the foundation of Indian atomic power programme.
(a) Satish Dhawan
(b) Homi Bhabha
(c) A.P.J. Kalam
(d) Vikram Sarabhai
Answer:
(b) Homi Bhabha

Question 21.
______, a terrorist organisation assassinated Rajiv Gandhi.
(a) LTTE
(b) ASEAN
(c) LTEN
(d) LTTA
Answer:
(a) LTTE

Question 22.
India wanted to acquire modernity and self-reliance by establishing _______.
(a) Nuclear reactor
(b) Industries
(c) Electricity grids
(d) Telephonic infrastructure
Answer:
(b) Industries

Question 23.
The _______ government started economic reforms from 1991.
(a) Moraq’i Desai
(b) Indira Gandhi
(c) Narasimha Rao
(d) Lai Bahadur Shastri
Answer:
(c) Narasimha Rao

Question 24.
In 1999, ________ came to power under the flag of Bharatiya Janata Party.
(a) United Progressive Alliance
(b) League of Indian Politics
(c) India’s Administrative Assemblage
(d) National Democratic Alliance
Answer:
(d) National Democratic Alliance

Question 25.
________ is known as the father of the White Revolution.
(a) Dr. Verghese Kurien
(b) Dr. Dayaram Sahni
(c) Dr. Homi Bhabha
(d) Dr. M. S. Swaminathan
Answer:
(a) Dr. Verghese Kurien

Question 26.
In 1975, the first satellite, ________ was launched by India.
(a) Sputnik 1
(b) Apollo 1
(c) Aryabhatta
(d) Agni
Answer:
(c) Aryabhatta

Question 27.
The _________ Commission was set up in 1953 to make recommendations, so as to improve condition of the lower castes.
(a) Ganesh Agarkar
(b) Appasaheb Mayekar
(c) Tarabai Shinde
(d) Kakasaheb Kalelkar
Answer:
(d) Kakasaheb Kalelkar

Write Short Notes on:

Question 1.
Atomic Energy and Space Research.
Answer:
(i) Dr. Homi Bhabha laid the foundation of the Indian atomic power programme.
(ii) India insisted on using atomic energy for peaceful purposes like generation of electricity, pharmaceuticals and defence.
(iii) India has achieved considerable success in space technology as well. In 1975, the first satellite ‘Aryabhatta’ was launched.
(iv) Today, India has a successful space programme and many satellites have been launched under this programme. India has also made considerable advancement in the telecom sector.

Explain the statements with reason:

Question 1.
Globalisation brought about many changes in different fields.
Answer:
(i) India has emerged as an important country on the global scene in different spheres.
(ii) India is an important member of international organisations like G-20 and ‘BRICS’ (Brazil, Russia, India, China, and South Africa).
(iii) India has experienced an important revolution in the field of telecommunication technology.
(iv) Mobile phones, internet and the communication facilities based on satellite have spread all across the country.
(v) In the political field, India has demonstrated to the world how a stable democracy can function successfully.
(vi) All this has resulted in a total transformation in the lifestyle of Indians, especially the youth. These changes are visible from their dietary habits, clothing, language and beliefs.

Question 2.
There were several major changes in the social field in India for upliftment of women.
Answer:
(i) To promote the all-round development of women and children many constructive steps were taken.
(ii) A separate ‘Department of Women and. Child Development’ was created in 1985 under the Ministry of Human Resource Development.
(iii) Some laws were made to ensure social justice to women and to help the implementation of various schemes in this direction.
(iv) They include the Prohibition of Dowry Act, Equal Remuneration Act. As per the 73rd and 74th Constitution Amendments, seats are reserved for women in the local self¬government bodies.

Read the passage and answer the questions.

As a part of India’s policy to use atomic energy for peaceful purposes, India successfully carried out an underground test of an atomic device at Pokharan in Rajasthan in 1974. In 1975, the people of Sikkim voted for joining the Indian republic and Sikkim became a full-fledged State in the Indian federation. During this decade, the political situation in India grew unstable. The Allahabad High Court gave the verdict in 1974 that Indira Gandhi; the then Prime Minister had misused the government machinery during her election campaign. It led to nationwide strikes and protest. During this period, the situation became more complicated due to the movement led by Jayprakash Narayan. The situation of law and order in the country worsened and the government declared a state of National Emergency on the basis of the constitutional provisions relating to Emergency. During this turbulent period, the fundamental rights of Indian citizens were suspended. Due to the emergency, the Indian administration became disciplined, but the human rights were restricted. The period of national emergency lasted from 1975 to 1977 and after that general elections were conducted. On the backdrop of the emergency, many opposition parties came together and formed a party called the Janata Party. The Congress party led by Indira Gandhi was roundly defeated by this newly formed ‘Janata Party’. Morarji Desai became the Prime Minister, but under his leadership the Janata Party government couldn’t last long due to internal differences. Charan Singh succeeded him, but even his government was a short-lived one. Elections were conducted once again in 1980 and the Congress party under the leadership of Indira Gandhi came to power again.

Question 1.
Enlist incidents that culminated in Indira Gandhi’s rise to power post the verdict of Allahabad High Court.
Answer:
Following incidents paved the way of Indira Gandhi back to power:

• Allahabad High Court verdict against Indira Gandhi
• Nation – wide strikes and protest led by Jai Prakash Narayan
• Imposition of National Emergency (1975-77) fundamental rights suspended
• Opposition parties came together to form Janata Party.
• Short lived governments of Morarji Desai and Charan Singh.
• Elections conducted in 1980 – Congress back to power.

Question 2.
Which state became a constituent state of India in 1975?
Answer:
Sikkim voted to join the Indian Republic and it became a full – fledged state of Indian Republic in 1975.

Question 3.
Why do you think India conducted a nuclear test in Pokhran in 1974?
Answer:
India conducted Nuclear tests for two reasons:
(i) to keep Pakistan’s aggression under check post 1971 war.
(ii) To initiate peaceful and constructive use of atomic energy.

Answer the following questions in detail:

Question 1.
What were the contributions of Lai Bahadur Shastri?
Answer:
(i) Lai Bahadur Shastri succeeded Pandit Jawaharlal Nehru and became the next Prime Minister of India.
(ii) During his tenure, India and Pakistan went to war over the Kashmir issue in 1965.
(iii) The Soviet Union tried to mediate between the two countries.
(iv) Lai Bahadur Shastri gave the slogan ‘Jai Jawan Jai Kisan’ with which he highlighted the importance of Indian soldiers and Indian farmers.
(v) Lai Bahadur Shastri breathed his last at Tashkent in 1966.

Question 2.
Write a note on Rajiv Gandhi.
Answer:
(i) Right after Indira Gandhi’s assassination in 1984, Rajiv Gandhi became the Prime Minister of India.
(ii) He tried to make several reforms in the field of Indian economy and that of science and technology.
(iii) He took the lead in solving the issues of the Tamil minority in Sri Lanka. He promoted the idea of a united Sri Lanka with internal autonomy to the Tamil community, but his efforts in this regard proved to be in vain.
(iv) He faced a lot of criticism in the context of corruption that took place during a defence equipment deal, especially the purchase of long-range canons from a foreign company called Bofors.
(v) Political corruption became a crucial issue in the general elections that followed and the Congress party was defeated.
(vi) In 1991, during the election campaign, the terrorist organisation in Sri Lanka, Liberation Tigers of Tamil Eelam (LTTE), assassinated Rajiv Gandhi.

Question 3.
Write a note on Atal Bihari Vajpayee.
Answer:
(i) In 1999 the ‘National Democratic Alliance’ came to power under the flag of Bharatiya Janata Party and Atal Bihari Vajpayee became India’s Prime Minister (1998-2004).
(ii) Atal Bihari Vajpayee tried to establish a dialogue with Pakistan but was not successful.
(iii) India conducted a number of nuclear tests in 1998 and declared herself as an atomic power.
(iv) In 1999, there was another war between India and Pakistan in Kargil region over the Kashmir issue
(v) India defeated Pakistan in this war as well.

Question 4.
What is economic liberalisation? What are its benefits?
Answer:
(i) The Narasimha Rao Government started economic reforms from 1991. These economic reforms are known as economic liberalisation.
(ii) The Indian economy flourished as a result of the implementation of this policy.
(iii) The foreign investment in India increased. Skilled Indian professionals helped reform the Indian economy.
(iv) The field of information technology opened several avenues of employment in the country.
(v) The changes after 1991 are also described as ‘globalisation’.

Question 5.
What do you mean by
(i) Green Revolution and
(ii) White revolution?
Answer:
(i) Dr. M. S. Swaminathan is known as the father of the Green Revolution in 1965. He implemented new scientific agricultural techniques and increased the production of foodgrains.
(ii) The experiment in co-operative dairy movement by Dr. Verghese Kurien led to increase of milk production in India. This is called as ‘White Revolution’.

Question 6.
What is the progress of India in the fields of atomic energy and space research?
Answer:
(i) India had also made a lot of progress in the fields of atomic energy and space research.
(ii) Dr. Homi Bhabha laid the foundation of the Indian atomic power programme.
(iii) India insisted on using atomic energy for peaceful purposes like generation of electricity, pharmaceuticals and defence.
(iv) India has achieved considerable success in space technology as well. In 1975, the first satellite ‘Aryabhatta’ was launched.
(v) Today, India has a successful space programme and many satellites have been launched under this programme.
(vi) India has also made considerable advancement in the telecom sector.

Question 7.
Describe the changes in India due to globalisation.
Answer:
(i) Globalisation brought about many changes in different fields like economy, politics, science and technology and society and culture.
(ii) India has emerged as an important country on the global scene in different spheres. India is an important member of international organisations like G-20 and ‘BRICS’ (Brazil, Russia, India, China, and South Africa).
(iii) India has experienced an important revolution in the field of telecommunication technology. Mobile phones, internet and the communication facilities based on satellite have spread all across the country.
(iv) In the political field, India has demonstrated to the world how a stable democracy can function successfully.
(v) All this has resulted in a total transformation in the lifestyle of Indians and especially the
youth. These changes are visible from their dietary habits, clothing, language and beliefs.

Question 8.
How was an independent country of Bangladesh created?
Answer:
(i) Indira Gandhi became the Prime Minister of India in 1966.
(ii) During her tenure, Pakistan’s oppressive I policies in East Pakistan resulted in a big movement there. This movement was led by Sheikh Mujibur Rahman and his organisation, ‘Mukti Bahini.’
(iii) This crisis in East Pakistan affected India as well, because millions of refugees came to India.
(iv) The 1971 war between India and Pakistan led to the creation of an independent country called Bangladesh.

Question 9.
What policies were made to uplift the deprived sections of the society?
Answer:
(i) The ‘Kakasaheb Kalelkar Commission’ was set up in 1953 to make recommendations so as to improve their condition.
(ii) In 1978, a Commission was constituted under the chairmanship of B. P. Mandal to study the issue of the backward classes.
(iii) The policy of reservation was adopted in order to strengthen the representation of backward sections in various services and institutions.
(iv) The Government passed the Prevention of Atrocities Act in 1989 to enable those belonging to the Scheduled Castes and Tribes to live with dignity and respect, free from fear, violence and oppression of the upper classes.

Question 10.
Identify the picture and give relevant information.

Indira Gandhi became the Prime Minister of India in the year 1966.
Indira Gandhi’s strong leadership was prominent in the war between India and Pakistan in 1971.
The first atomic test at Pokharan was carried out under her leadership.
The Allahabad High Court gave the verdict in 1974, that Indira Gandhi had misused the government machinery during her election campaign.
She declared a’state of National Emergency in 1975.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 6 Empowerment of Women and Other Weaker Sections Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 6 Empowerment of Women and Other Weaker Sections

Class 9 History Chapter 6 Empowerment of Women and Other Weaker Sections Textbook Questions and Answers

1. Complete the statements by choosing the proper option:

Question 1.
In 1992, a movement against drinking alcohol was started in _________.
(a) Maharashtra
(b) Gujarat
(c) Andhra Pradesh
(d) Uttarakhand
Answer:
(c) Andhra Pradesh

Question 2.
In 1975, the government of India formed the Committee on the status of women under chairmanship of ______.
(a) Dr Phulrenu Guha
(b) Uma Bharati
(c) Vasundhara Raje
(d) Pramila Dandavate
Answer:
(a) Dr Phulrenu Guha

2.B Identify the wrong pair and rewrite the corrected one:

Question 1.
(i) Saudamini Rao – Stree-Mukti Andolan Samiti
(ii) Vidya Bal – Nari Samata Manch
(iii) Pramila Dandavate – Mahila Dakshata Samiti
(iv) Jyoti Mhapsekar – Committee on the Status of Women
Answer:
Wrong Pair : Jyoti Mhapsekar – Committee on the Status of Women

3. Make a concept chart:

Question 1.
Laws related to women:
Answer:

4. Explain the concepts:

Question 1.
Alimony
Answer:
(i) A fixed amount paid to a married woman for her upkeep by the husband who has divorced her, is called alimony.
(ii) The law enacted in 1952, recognizes women’s right to alimony and their share in the father’s property. Her right to Sreedharan was recognized.

Question 2.
Minority
Answer:
(i) In any society, a group of people of a particular religion, language or race who are few in number are termed as a minority.
(ii) As there are various religions, sects, and languages in our country, we see great cultural diversity. There is variation in cultural traditions, too.

5. Explain the following statements with reasons:

Question 1.
The evolution of the women’s liberation movement.
Answer:
(i) The United Nations had declared 1975 as the International Women’s Year.

(ii) In 1975, the government of India constituted the Committee on the Status of Women and appointed Dr Phulrenu Guha as its Chairman.

(iii) A comprehensive survey was conducted on several issues such as the social position of women, their status, the consequences of the constitutional provisions made for women as also education of women and its percentage, their progress due to education, difficulties faced by working women, the position of women with respect to work /livelihood, their wages , the female-male ratio, birth and mortality rate and the role of women.

(iv) Taking into consideration this entire background, a State-wide conference for women was held in 1975 organised by the Stree-mukti Sangharsha Samiti. Women from all walks of life / regions participated in it.

(v) The Samiti published its manifesto in 1978. The policy of a struggle against discrimination on the basis of gender, caste and vama was adopted.

(vi) In 1977, groups like the Streemukti Andolan Samiti established by Soudamini Rao in Pune, Bayaja a fortnightly, as also Stree Uvach, Maitrin and Stree Anyayavirodhi Manch in Aurangabad, Mahila Dakshata Samiti in Kolhapur, Mahila Hakka in Nashik and Nari Prabodhan Manch in Latur were formed.

(vii) Anti-dowry protection committees were formed all over Maharashtra. A conference to protest against oppression of women was organised in Dhule city.

Question 2.
The Prohibition of Dowry (Amendment) Act was enacted in 1984.
Answer:
(i) Even after the enactment of the anti-dowry law, incidents like ‘Woman bums to death as sari pallu catches fire while cooking’ and ‘Woman slips into well while washing clothes, drowns and dies’ continued to be reported.
(ii) Investigations still revealed dowry to be the most frequent cause of such deaths.
(iii) The role of the police, the administration and judiciary were highlighted. This created greater awareness.
(iv) As a result, the Dowry Prohibition (Amendment) Act came into force in 1984.

Question 3.
The practice of untouchability was banned by law.
Answer:
(i) In the post-independence period, our Constitution adopted the values of freedom, equality, fraternity and social justice.
(ii) In accordance with this, the practice of untouchability was banned by law.
(iii) Untouchability was removed by the 17th paragraph of the Constitution and this class was included in the Scheduled Castes.

Question 4.
The Constitution gives cultural and educational rights to minorities.
Answer:
(i) In any society, a group of people of a particular religion, language or race who are few in number are termed a minority.

(ii) As there are various religions, sects and languages in our country, we see great cultural diversity. There is variation in cultural traditions, too.

(iii) In order to preserve their cultural traditions and develop their own language, the Constitution gives the citizens certain educational and cultural rights.

(iv) Minorities have the right to protect and conserve their language, culture and traditions.

(v) For this purpose they have the right to set up separate educational institutions.

6. Answer the following questions in 25 to 30 words:

Question 1.
Describe the Chipko movement.
Answer:
(i) The show of constructive woman power was seen during the Chipko movement in 1973.
(ii) Trees from the forests in the foothills of the Himalayas were to be cut down for commercial purposes.
(iii) Chandiprasad Bhat and Sunderlal Bahuguna had started a movement to prevent this.
(iv) Women followed the strategy of holding hands and encircling each tree.
(v) As their method consisted of protecting the tree by embracing it, the movement came to be known as the Chipko movement.
(vi) Women took part in it in large numbers. Women had a big role to play in the agricultural economy of this region.
(vii) Gaura Devi was the activist who created this awareness among the women with the help of Sudesha Devi and Bachani Devi.

Question 2.
Write a note on the Protection of Human Rights Act.
Answer:
(i) In 1993, the Protection of Human Rights Act law was enacted to prevent injustice to men and women.
(ii) The National Human Rights Commission was also formed for this purpose.
(iii) In some States, the State Human Rights Commission was also formed on the same lines.
(iv) This law which deals with collective oppression, the social conditions of divorced women, women and secure work places, played an effective role in mitigating injustices to women.

7. Answer the following question in detail:

Question 1.
Explain with examples how the united strength of women can bring about constructive changes in various fields.
Answer:
(i) Women, who have to face the brunt of scarcity of supplies and rising prices, gave a show of their strength as an organised entity in 1972.

(ii) Under the leadership of the socialist leader Mrinal Gore, women in Mumbai participated in a demonstration which came to be known as the laatne morcha (the rolling pin demonstration).

(iii) Commodities like oil, ghee, rava, maida, would become scarce just as Diwali was near at hand. Kerosene had become very expensive.

(iv) Women came together brandishing their rolling pins and took part in the demonstration.

(v) This movement met with success and the public got a glimpse of the united power of women.

(vi) Another show of constructive woman power was seen during the Chipko movement in 1973. Gaura Devi was the activist who created awareness among the women with the help of Sudesha Devi and Bachani Devi.

(vii) In 1992, three youths of Dubuganta village of Nellore district in Andhra Pradesh drowned in a lake, in a state of inebriation, and died.

(viii) At this instance, the women of the village came together and forced the closure of arrack shops.

(ix) The movement spread to the entire State and the government had to adopt a strict policy against the sale of alcohol.

(x) On 4th September 1987, Roop Kanwar, a married woman, committed sati. She did not do this of her own free will; she was coerced into doing so. Committing sati, glorifying the practice of sati were all illegal acts.

(xi) The women activists and journalists, Meena Menon, Geeta Seshu, Sujata Anandan, Anu Joseph and Kalpana Sharma investigated the case. In 1998, the government passed the Sati (Prevention) Act with very stringent provisions.

Class 9 History Chapter 6 Empowerment of Women and Other Weaker Sections Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
Under the leadership of the socialist leader ______ women in Mumbai participated in a demonstration which came to be known as the Laatne Morcha.
(a) GauraDevi
(b) Dr Phulrenu Guha
(c) Meena Menon
(d) Mrinal Gore
Answer:
(d) Mrinal Gore

Question 2.
Vinoba Bhave made use of women power in the _____.
(a) Bhoodan Movement
(b) Chipko Movement
(c) Laatne Morcha
(d) Anti-liquor movement
Answer:
(a) Bhoodan Movement

Question 3.
Women activists associated with the Chipko movement ________.
(a) Sucheta Kripalani, Nandini Satpathy and Jayalalitha
(b) Dr Phulrenu Guha, Uma Bharati and Vasundhara Raje
(c) Gaura Devi, Sudesha Devi and Bachani Devi
(d) Dr Phulrenu Guha, Meena Menon and Mrinal Gore
Answer:
(c) Gaura Devi, Sudesha Devi and Bachani Devi

Question 4.
The Chipko movement was started by ______.
(a) Chandiprasad Bhat and Sunderlal Bahuguna
(b) Sudesha Devi and Bachani Devi
(c) Vinoba Bhave and Mahatma Gandhi
(d) Meena Menon and Mrinal Gore
Answer:
(a) Chandiprasad Bhat and Sunderlal Bahuguna

Question 5.
The United Nations had declared as _____ the International Women’s Year.
(a) 1992
(b) 2000
(c) 1975
(d) 1988
Answer:
(c) 1975

Question 6.
A collection of songs called Streemuktichi Lalkari, a street play called Mulgi Jhaali Ho are written by ______.
(a) Vidya Bal
(b) Pramila Dandavate
(c) Sujata Anandan
(d) Jyoti Mhapsekar
Answer:
(d) Jyoti Mhapsekar

Question 7.
A State-wide conference for women was held in 1975 organised by the _______.
(a) Samajwadi Mahila Sabha.
(b) Stree-mukti Sangharsha Samiti.
(c) Nari Prabodhan Manch.
(d) Stree Anyayavirodhi Manch.
Answer:
(b) Stree-mukti Sangharsha Samiti.

Question 8.
Census is conducted in India every _______.
(a) 5 years
(b) 10 years
(c) 15 years
(d) 20 years
Answer:
(b) 10 years

Identify and write the wrong pair in the following sets:

Question 1.
(i) Vinoba Bhave – Bhoodan Movement
(ii) Chandiprasad Bhat and Sunderlal Bahuguna – Chipko movement
(iii) Dr Phulrenu Guha – Laatne Morcha
(iv) Shah Bano Begum – Right to alimony
Answer:
Wrong Pair: Dr Phulrenu Guha – Laatne Morcha

Question 2.
(i) Stree Anyayavirodhi Manch – Aurangabad
(ii) Mahila Dakshata Samiti – Pune
(iii) Mahila Hakka – Nashik
(iv) Nari Prabodhan Manch – Latur
Answer:
Wrong Pair : Mahila Dakshata Samiti – Pune

Question 3.
(i) Stree-mukti Andolan Samiti – Soudamini Rao
(ii) Mahila Dakshata Samiti – Phulrenu Guha
(iii) Milun Saryajani – Vidya Bal
(iv) Laatne Morcha – Mrinal Gore
Answer:
Wrong Pair: Mahila Dakshata Samiti – Phulrenu Guha

Question 4.
(i) Streemuktichi Lalkari – Collection of songs
(ii) Mulgi Jhaali Ho – Periodical
(iii) Bayaja – fortmighty
(iv) Sitama Katha – Story
Answer:
Wrong Pair : Mulgi Jhaali Ho – Periodical

Do as directed
Make a concept chart:

Question 1.
Roop Kanwar Sati Case.
Answer:

Question 2.
List at least five Women Chief Ministers in India:
Answer:

• Sucheta Kriplani (Uttar Pradesh)
• Nandini Satpathy (Odisha)
• Jayalalitha (Tamil Nadu)
• Mayawati (Uttar Pradesh)
• Vasundhara Raje (Rajasthan)
• Mamata Banerjee (West Bengal)
• Rabdi Devi (Bihar)
• Anandiben Patel (Gujarat)
• Sheila Dixit (Delhi)
• Mehbooba Mufti Sayeed (Jammu & Kashmir)
• Uma Bharati (Madhya Pradesh)
• Rajendra Kaur Bhattal (Punjab)
• Sushma Swaraj (Delhi)
• Shashikala Kakodkar (Goa)
• Sayeeda Anwar Taimur (Assam)
• Janaki Ramachandran (Tamil Nadu), are all women who have led their States as Chief Ministers.

Complete the following chart:

Question 1.

Answer:

Write short notes on:

Question 1.
International Women’s Day
Answer:
(i) A demonstration was held in New York on 8 March 1857.

(ii) It was the first demonstration by working women and its demands were for fewer working hours, proper remuneration, provision of creches, etc.

(iii) On 8 March 1909 women went on strike for the very same demands. That is why, this day was declared as the Women’s Struggle Day at the Women’s Socialist International, a conference held in Denmark.

(iv) The year 1975 was observed as the International Women’s Year and in 1977, 8 March was declared as International Women’s Day by a resolution passed in the General Assembly of the United Nations.

(v) The three aspects of this programme were peace, development and equality between men and women.

Question 2.
Family Courts
Answer:
(i) Family courts were established to resolve conflicts arising out of differences within marriage and domestic problems as well as issues such as alimony, single parenthood, separation, care of children and ownership which are all related to the family situation.
(ii) These family courts give priority to mutual understanding over witnesses and evidence and to counsellors over lawyers.
(iii) Emphasis is on resolving issues quickly but justly.

Question 3.
Reservation for Women
Answer:
(i) The 73rd and 74th amendments to the Constitution provide for reservation of one-third of the seats for women in Gram Panchayats, Panchayat Samitis, Zilla Parishads, municipalities and municipal corporations as well as for the posts of Sarpanch, Chairman and Mayor.
(ii) Maharashtra and 15 other states have reserved 50% seats for women.
(iii) This provision provides women the opportunity to participate in the business of the community.

Question 4.
Scheduled Tribes
Answer:
(i) The Scheduled Tribes or Adivasis who live in remote parts of the country face several difficulties.

(ii) As they have lived far away from the progress made in modem times, they are economically and socially backward.

(iii) Even though their conditions have seen some improvement in recent times, they do not have any means of livelihood other than agriculture and forest produce.

(iv) Modem farming implements have not yet reached them. Hence, their income from agriculture is very small. Besides, their fields are on hillsides and not fertile.

(v) They are malnourished due to insufficient and poor quality of diet.

(vi) Adivasis in remote areas find it difficult to get medical attention in time. For all these reasons, there is a need to give special protection to Adivasis.

(vii) In the Indian Constitution, Adivasis have been enumerated as Scheduled Tribes. They are given representation in law boards, education, government service, etc.

Question 5.
8th March was declared as International Women’s Day.
Answer:
(i) A demonstration was held in New York on 8 March, 1857. It was the first demonstration by working women and its demands were for fewer working hours, proper remuneration, provision of creches, etc.

(ii) On 8 March 1909 women went on strike for the very same demands. That is why, this day was declared as the Women’s Struggle Day at the Women’s Socialist International, a conference held in Denmark.

(iii) The year 1975 was observed as the International Women’s Year and in 1977, 8 March was declared as International Women’s Day by a resolution passed in the General Assembly of the United Nations.

Question 6.
The ‘Muslim Women’s Act’ (Protection of rights on divorce) was passed by Parliament.
Answer:
(i) A fixed amount paid to a married woman for her upkeep by the husband who has divorced her, is called alimony.

(ii) In the case of Mohammad Ahmed Khan vs Shah Bano Begum, the Supreme Court gave the verdict that Shah Bano Begum had the right to alimony.

(iii) However, religious organisations protested vociferously against the verdict.

(iv) As a result, the ‘Muslim Women’s Act’ (Protection of rights on divorce) was passed by Parliament.

Question 7.
In 1998, the government passed the Sati (Prevention) Act with very stringent provisions.
Answer:
(i) On 4th September 1987, Roop Kanwar, a married woman, committed sati. She did not do this of her own free will; she was coerced into doing so.

(ii) Committing Sati, glorifying the practice of Sati were all illegal acts.

(iii) The women activists and journalists, Meena Menon, Geeta Seshu, Sujata Anandan, Anu Joseph and Kalpana Sharma investigated the case.

(iv) So in 1998, the government passed the Sati (Prevention) Act with very stringent provisions.

Read the passage and answer the questions:

Passage I

International Women’s year: The United Nations ! had declared 1975 as the International Women’s Year. The three aspects of this programme were peace, development and equality between men and women. In 1975, the government of India constituted the Committee on the Status of Women and appointed Dr Phulrenu Guha as its Chairman. A comprehensive survey was conducted of several issues such as the social position of women, their status, the consequences of the constitutional provisions made for Women as also education of women and its percentage, their progress due to education, difficulties faced by working women, the position of women with respect to work/livelihood, their wages (relative to men’s wages), the female-male ratio, birth and mortality rates and the role of women.
Taking into consideration this entire background, State-wide conference for women was held in 1975 organised by the stree-mukti Sangharsha Samiti. Women from all walks of life/regions participated in it. The Samiti published its manifesto in 1978. The Samiti published its manifesto discrimination on the basis of gender, caste and vama was adopted.
This gave rise to a collection of songs called Streemuktichi Lalkari, a street play called Mulgi Jhali Ho by Jyoti Mhapsekar and a periodical called Prerak Lalkari which became their mouthpiece and other such programmes. In 1977, groups like the Streemukti Andolan Samiti established by Soudamini Rao in Pune, Bayaja a fortnightly, as also Stree Uvach, Maitrin and Stree Anyayavirodhi Manch in Aurangabad, Mahila Dakshata Samiti in Kolhapur, Mahila Hakka in Nashik and Nari Prabodhan Manch in Latur were formed. Anti-dowry protection committees were formed all over Maharashtra. A conference to protest against oppression of women was organised in Dhule City.

Question 1.
Prepare a time line of the highlights mentioned in the passages.
Ans:
Timeline of the Highlights of the passage

• 1975 – UN declared International Women’s Day Committee on the Status of women was appointed.
• 1975 – Stree Mukti Sangharsha Samiti was organised.
• 1978 – Stree Mukti Sangharsha Samiti published a Manifesto
• 1977 – Stree Mukti Andolan Samiti was established by Soudamini Rao.

Question 2.
State the issues on which a survey was conducted by the committee on the status of women.
Ans:
The Committee on Status of Women appointed under the chairmanship of Dr. Phulrenu Guha made a comprehensive survey over several issues:

• Social position of women and their status.
• Consequences of the constitutional provision made for women.
• Education of women and it’s a percentage.
• Their progress due to education.
• Difficulties faced by working women with respect to work, livelihood, and wages.
• Female – male ratio.
• Birth and mortality rates.
• Role of women.

Question 3.
Name any two women who according to you managed to break the norms of the Indian Society and came up as icons of woman power.
Ans:
(i) Mrinal Gore
(ii) Gaura Devi

Passage II

Vidya Bal’s periodicals, Nari Samata Manch, and Milun Saryajani, as also the work ofthe Samajwadi Mahila Sabha and the Krantikari Mahila Sanghatana were of great help in dealling with women’s issues. The Employment Guarantee Scheme in Maharashtra also helped to empower women. Pramila Dandavate established the Mahila Dakshata Samiti in Delhi in 1976. Branches of the Samiti came up in the States of Andhra Pradesh, Tamil Nadu, Kerala, Odisha, Madhya Pradesh, Uttar Pradesh and Punjab. The Communist Party established the Akhil Bharatiya Janavadi Mahila Sanghatana in 1980. Efforts were made to start branches of this Organisation in all parts of India. The Sanghatana started a struggle against issues like dowry, female foeticide, domestic abuse, Research on women’s issues was undertaken at various levels. Women’s Studies Centres were started at the first women’s university, Mumbai and at Tata Institute of Social Sciences, Mumbai, Savitribai Phule Pune University and Shivaji University, Kolhapur. These Centres played an important role in critical analysis and in developing a vision on women’s issues.

Question 1.
State the role of Pramila Dandavate and Vidhya Bal in women’s upliftment.
Answer:
(i) Pramila Dandavate established Mahila Dakshata Samiti in Delhi in 1976.
(ii) Vidya Bal published periodicals like ’Nari Samata Manch’ and ‘Milun Saryajani’.

Question 2.
Where are the women’s study centers located in Maharashtra?
Answer:
Women study centers are located at:

• Shrimati Nathibai Damodar Thakersey Women’s University – Mumbai.
• Tata Institute of Social Sciences – Mumbai.
• Savitribai Phule University – Pune
• Shivaji University – Kolhapur.

Question 3.
Do you think International Beauty Pageants can help in creating awareness about women’s issues? why?
Answer:
Yes, International Beauty Pageants can help in creating global awareness on women’s issues world wide.
The participants in these events come from different cultures and backgrounds, they speak on many subjects affecting women which is covered by international media. Concerns pertaining to women’s political rights have been brought to the notice of the world through these pageants.

Answer the following questions in detail:

Question 1.
Explain, in detail, the Anti-liquor movement.
Answer:
(i) In 1992, in Andhra Pradesh, a movement was started against the drinking of alcohol. It received a good response in other States too.

(ii) When the head of the household dies an untimely death due to addiction to alcohol, the family faces a serious crisis which affects women the most.

(iii) Due to alcoholism, they have to deal with extreme sorrow and poverty. This movement got the support of the anti-arrack movement in Andhra Pradesh.

(iv) As a result of a government policy, arrack (a locally produced alcohol) dealers set up shop in every town and village.The poor labouring people began to get addicted to alcohol.

(v) At the same time, a literacy programme was being run in the villages of the State. The Sitama Katha (Sita’s story) was narrated as a part of this programme.

(vi) It was a story about Sita who creates awareness among the people of a village and gets alcohol to be banned from the village.

(vii) In 1992, three youths of Dubuganta village of Nellore district in Andhra Pradesh drowned in a lake, in a state of inebriation, and died.

(viii) At this instance, the women of the village came together and forced the closure of arrack shops.

(ix) The report of this news in the local newspapers had its effect on many other villages.

(x) The movement spread to the entire State and the government had to adopt a strict policy against the sale of alcohol.

Question 2.
Explain the term ‘Nomadic’ and ‘De-notified’ Tribes.
Answer:
(i) Castes and tribes that move from place to place for a livelihood, are included under Nomadic Tribes.
(ii) They live by rearing animals and engaging in some other occupations.
(iii) The British had declared some of them as criminal tribes.
(iv) In the Law of 1871 to curb crimes, some of the main groups were mentioned as criminal tribes and their occupations and movements were banned.
(v) This unjust law was repealed in the post¬independence period.
(vi) And the curbs on these tribes were lifted. They were included under De-notified Tribes.
(vii) Special efforts are made by the government for the purpose of their social and economic development.
(viii) These tribes have been given representation in educational institutions and the government sector.

Question 3.
What do you mean by Scheduled Castes?
Answer:
(i) In the post-independence period, our Constitution adopted the values of freedom, equality, fraternity and social justice.
(ii) In accordance with this, the practice of untouchability was banned by law.
(iii) Untouchability was removed by the 17th paragraph of the Constitution and this class was included in the Scheduled Castes.
(iv) In view of the educational and social backwardness of these castes, they were given reservations in education as well as jobs to facilitate their development.

Question 4.
Write a note on the manifestation of woman power.
Answer:
(i) Women, who have to face the brunt of scarcity of supplies and rising prices, gave a show of their strength as an organised entity in 1972.
(ii) Under the leadership of the socialist leader Mrinal Gore, women in Mumbai participated in a demonstration which came to be known as the laatne morcha (the rolling pin demonstration).
(iii) Commodities like oil, ghee, rava, maida, would become scarce just as Diwali was near at hand. Kerosene would become very expensive.
(iv) Women came together brandishing their rolling pins and took part in the demonstration.
(v) This movement met with success and the public got a glimpse of the united power of women.

Observe the pictures and write relevant information about them:

Question 1.

Answer:
(i) A show of constructive women power was seen during the Chipko Movement in 1973. The trees from the forests in the foothills of Himalayas were to be cut down for commercial purposes.
(ii) The important leaders of the Chipko Movement were: Chandiprasad Bhat, Sunderlal Bahuguna, Gaura Devi, Sudesha Devi and Bachani Devi.

Question 2.

Answer:
(i) In 1992, in Andhra Pradesh a movement was started against the drinking of alcohol.
(ii) In 1992, three youths of Dubuganta village of Nellore district in Andhra Pradesh drowned in lake, in a state of inebriation and died. At this instance, the women of the village came together and forced the closure of arrack shops.
(iii) Arrack is a locally produced alcohol. As a result of a government policy arrack dealers set up shop in every town and village.

Question 3.

Answer:
(i) In 1998, the govt passed the Sati (Prevention) Act with very stringent provisions.
(ii) On 4th Sept. 1987, Roop Kanwar a married woman, committed sati. She did not do this of her own free will, she was coerced into doing so.
The women activists and journalists, Meena Menon, Geeta Seshu, Sujata Anandan, Anu Joseph and Kalpana Sharma investigated the case.

Question 4.

Answer:
(i) The Dowry Prohibition Act of 1961 made both giving and taking of dowry a cognizable criminal offence.
(ii) Even after the enactment of the anti-dowry law investigations still revealed dowry to be the most frequent cause of deaths. This created greater awareness. Thus, Dowry Prohibition (Amendment) Act came into force in 1984.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 6 Properties of Sea Water Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 6 Properties of Sea Water

Class 9 Geography Chapter 6 Properties of Sea Water Textbook Questions and Answers

1. Tick the correct box according to the salinity of the ocean water ✓

Answer:
(a) Low
(b) Low
(c) High
(d) High
(e) Low
(f) High.

2. Give reasons.

(a) Salinity is low in the land-locked Baltic Sea.
Answer:

• The Baltic Sea lies in the temperate region.
• In temperate regions, the sunrays are slanting and therefore, the temperatures are lower.
• The supply of fresh water is also more, as numerous rivers empty their waters into the Baltic sea.
• Therefore, in spite of being landlocked, due to low rate of evaporation and ample supply of fresh water, the salinity of the Baltic Sea is low.

(b) There is higher salinity in the northern Red Sea while lower in the southern.
Answer:

• The Red Sea is one of the saltiest bodies of water in the world, owing to high evaporation.
• The salinity is 36%o in the southern part because of the effect of the Gulf of Aden.
• It reaches 41 %o in the northern part, owing mainly to the Gulf of Suez and the high evaporation as well as very little precipitation.
• Hence, there is more salinity in the northern Red Sea while lesser in the south.

(c) Oceans located at the same latitude do not have same salinity.
Answer:

• The salinity of the oceans depends on factors like rate of evaporation and supply of fresh water.
• In Oceans where rate of evaporation is more than the supply of fresh water, the salinity is higher.
• In Oceans where supply of freshwater exceeds the rate of evaporation, salinity is low.
• Salinity is not affected much in areas where supply of freshwater and the evaporation of water is low.
• Thus, oceans located on the same latitude do not have the same salinity.

(d) With increasing depth, the temperature of sea water decreases to a certain limit.
Answer:
With increasing depth, the temperature of sea water decreases to a certain limit because –

• While most of the sunrays radiate back from the surface of the sea, some of them penetrate to certain depths in the water.
• As a result, the intensity of sunrays decreases with the increasing depth.
• The temperature decreases up to 2000m depth.
• After 2000m, the temperature of the seawater is uniform everywhere.

(e) There are more salt-pans on the Western coast of India than its eastern coast.
Answer:

• The Arabian Sea lies lying to the west and Bay of Bengal lies to the east of India.
• Many large peninsular rivers drain their waters in the Bay of Bengal and on the contrary, only small seasonal coastal rivers drain in the Arabian Sea.
• Hence, the salinity of the eastern coast is 34%, while it is 35% in the Arabian Sea.
• Thus, there are more salt-pans on the Western coast of India than its Eastern coast.

(f) Salinity increases in the mid-latitudinal zones.
Answer:

• Mid-latitudinal zones lies between 25° to 35° north and south of the equator.
• In this zone, the rainfall is less and the supply of fresh water from rivers is also low.
• This region experiences high-temperature conditions which are marked by the presence of hot deserts of the world. These high-temperature conditions lead to a high rate of evaporation.
• Thus, the salinity of the seas is found to be higher in mid-latitudinal zones.

3. Answer the following questions.

(a) What are the factors affecting the salinity of the sea water?
Answer:

1. The uneven distribution of temperature on earth and uneven supply of freshwater affects the salinity of seawater.
2. In the tropical zone, temperature is higher. Rate of evaporation is also higher and therefore, the salinity is higher.
3. Around 5° N and S of the equator, in the equatorial calm belt, the sky is cloudy for a long period of time and convectional rainfall occurs every day.
4. Large rivers like Congo and Amazon in the equatorial regions meet the sea. Therefore, supply of freshwater is abundant, too. But because of higher temperatures, rate of evaporation is more and therefore, the seas in these areas are more saline.
5. In mid-latitudinal zones (25° to 35° N and S), rainfall is lesser and the supply of freshwater from rivers is also low. This zone has the hot deserts of the world. Thus, the salinity of the seas is found to be higher here.
6. In temperate regions, the sunrays are slanting and therefore, the temperatures are lower. Because of the melting of the snow, the supply of water is also more, and therefore, in this zone, salinity decreases with increasing latitudes.
7. In the polar areas, temperatures are very low. Evaporation is also very less in polar areas. So, salinity is low.
8. Landlocked seas have higher salinity than open seas as the rate of evaporation is more. There is a lack of supply of fresh water from large rivers. Thus, there is a difference in the salinities of open and closed seas.

(b) Explain the distribution of salinity around the Tropic of Cancer and tropic of Capricorn.
Answer:

• The uneven distribution of temperature on earth, and uneven supply of freshwater affects the salinity of sea water.
• Region, between the Tropic of Cancer and Tropic of Capricorn is called as the Tropical zone.
• In the tropical zone, temperature is higher.
• Hence, the rate of evaporation is also higher, and therefore, salinity is higher.

(c) What are the factors affecting the temperature of the sea water?
Answer:

1. Temperature is a major property of the sea water.
2. Sea water upto the depth of 500m is called as surface water. The surface temperature of the sea water is not uniform everywhere. This is dependent on different factors. .
3. Latitudinally, the surface temperature of the seawater decreases from the equatorial areas towards the poles.
4. The average temperature in equatorial areas is around 25° C, while it is about 2° C near the poles.
5. Besides this, cyclones, rainfall, sea waves, ocean currents, salinity, pollution, convectional currents, and seasons also affect the surface temperature.
6. Regions where cold ocean currents flow, the surface temperature of ocean water is less, while the regions where the warm currents move, the temperature increase.

(d) Explain the changes occurring in the temperature of sea water according to the depth.
Answer:

• While most of the sunrays radiate back from the surface of the sea, some of them penetrate to certain depths in the water.
• As a result, the intensity of sunrays decreases with the increasing depth.
• The temperature decreases up to 2000m depth.
• After 2000m, the temperature of the seawater is uniform everywhere.
• It is around 4°C everywhere from the equatorial regions to the polar areas.
• Temperature reduces only up to 4° C according to depth, and therefore, the water at greater depths does not freeze.
• The temperature of the seawater changes rapidly with depth at the equatorial areas. The difference in temperature is lesser in polar areas.
• There is also a difference in open seas and landlocked seas. In low latitudes, because the salinity of the landlocked seas is more, the temperature of the landlocked seas is higher than the open seas.

(e) Name the factors affecting salinity.
Answer:
Due to the sun’s heat, evaporation happens at a faster rate. Evaporated water turns into water vapour and reduces in quantity. But amount of salt remains the same in the remaining water and therefore the salinity of water increases.

• In seas where the rate of evaporation is high than the supply of fresh water, salinity is high.
• In seas where the supply of freshwater exceeds the rate of evaporation, salinity is low.
• Salinity is not affected much in seas where both the supply of freshwater and evaporation of water is low.

4. Explain how temperature affects the following.

(a) the density of sea water
Answer:

• If temperature reduces, density of water increases.
• Hence, cold water is denser than hot water.

(b) the salinity of sea water
Answer:

• If the salinity of water is high, the density of water increases.

Activity:

Complete the table showing the salinity of open and land-locked seas.

Answer:

Class 9 Geography Chapter 6 Properties of Sea Water Intext Questions and Answers

Observe the following Map and answer the questions:

Question 1.
What is the salinity around the tropics?
Answer:
The salinity around the tropics is 36%o.

Question 2.
Which region has the least salinity?
Answer:
The Bay of Bengal has the least salinity of 32%o.

Question 3.
Which ocean has salinity more than 37%o?
Answer:
Atlantic ocean has salinity of more than 37%o.

Question 4.
What are the reasons of differences in salinity on a global level?
Answer:
The uneven distribution of temperature on earth, and uneven supply of freshwater, etc. are the reasons for differences in salinity on a global level.

Observe the Graph and answer the questions:

Question 1.
What is the maximum temperature of seawater in equatorial areas? How much is this temperature at a depth of 500 m?
Answer:
The maximum temperature of sea water in equatorial areas is 18° C. The temperature at the depth of 500 m is 11° C.

Question 2.
What is the temperature of seawater at the sea level in the mid-latitudes?
Answer:
The temperature of seawater at the sea level in the mid-latitudes is 14° C approximately.

Question 3.
How much has this temperature changed at 1500 m depth?
Answer:
The temperature is about 5° C at the depth of 1500 m. Thus the temperature of sea water at mid-latitudes has changed from 14°C at the sea level to about 5°C at the depth of 1500 m i.e. temperature has changed (reduced) by 9°C.

Question 4.
What does the thermal graph for the high latitude say? What is its temperature at 500, 1000 and 1500 m depths?
Answer:
In high latitudes the temperature of sea water at all depths remains constant at 4° C.

Question 5.
After what depth does the seawater temperature remain stable everywhere?
Answer:
After 2000 m, the temperature of the sea water is uniform everywhere.

Question 6.
With increasing depth, what decreases: temperature, salinity or density?
Answer:
Temperature and salinity decreases with increasing depth.

Question 7.
After what depth does the change in these factor become almost zero?
Answer:
After the depth of 1000 m there is no change in all these factors.

Question 8.
Till what depth is the change in these factors higher?
Answer:
The higher change can be seen up to a depth of about 500m.

Question 9.
Explain the correlation between all the three factors.
Answer:
If the temperature is less, density is more. If the salinity is less, then density is also less. However temperature affects the density more as compared to the salinity. If the temperature is less, then the density is more despite less salinity.

Let’s Recall.

Question 1.
Which is the largest water storage of the world?
Answer:
Oceans are the largest water storage of the world.

Question 2.
Why is the seawater salty?
Answer:

• Salt in the ocean comes from rocks on land.
• Rivers carry dissolved salts to the ocean.
• Water evaporates from the oceans to fall again as rain and to feed the rivers, but the salts remain in the ocean.

Question 3.
What are the reasons for high salinity in the oceans?
Answer:
High rate of evaporation and low supply of fresh water leads to high salinity in the oceans:

Question 4.
How can we obtain the salts from the ocean water?
Answer:

• Sea water contains a large amount of common salt and the salts of other metals dissolved in it.
• Near the sea-shore, the sea water is collected in shallow pits (salt pans) and allowed to evaporate in the sunshine.
• In a few days, the water evaporates, leaving behind salt.
• The salt so obtained is collected and transported to factories, where it is purified and packed for consumption.

Question 5.
What is the use of the salts in the oceans to us?
Answer:

• The salts is used in the food we eat.
• It is used for making various chemicals and medicines.
• Salt is also used to preserve things for longer periods. It is also used in ice factories.

Can You Tell?

Question 1.
What is the difference in the temperatures of the land and the sea?
Answer:
During the daytime land is hotter than the sea whereas, during the night time land is cooler than the sea.

Question 2.
What would be the difference in the temperature of the seawater from the equatorial region to the polar areas?
Answer:
Latitudinally, the surface temperature of the seawater decreases from the equatorial areas towards the poles. The average temperature in equatorial areas is around 25° C while it is about 2° C near the poles.

Think about it.

Question 1.
If you think about India there is the Arabian sea to the west and the Bay of Bengal to the east. The salinity of the eastern coast is 34%o while it is 35%o in the Arabian sea. What could be the reason of higher salinity in the western coastal region?
Answer:
Many large peninsular rivers drain their waters in the Bay of Bengal and on the contrary only small seasonal coastal rivers drain in the Arabian sea. Hence the salinity of Arabian sea is more than the Bay of Bengal.

Try this.

Question 1.
In which container has the water increased or decreased?
Answer:

• The water has increased in the container which is in the classroom in which freshwater was added.
• The water has decreased in the container which was kept in the sun outside.

Question 2.
What could be the reasons behind the decrease or increase?
Answer:

• Since freshwater was added to one of the containers in the classroom the water level increased.
• The water has decreased in the container which was kept outside in the sun due to evaporation.

Question 3.
What could be the reason behind the low and high salinity of the water in the container?
Answer:

• In the container which as kept outside in the sun, due to high rate of evaporation, the salinity is high.
• As we kept on adding fresh water to the container kept in the classroom the salinity is low.

Class 9 Geography Chapter 6 Properties of Sea Water Additional Important Questions and Answers

Select the correct option:

Question 1.
The average temperature in equatorial areas is
(a) 25° C
(b) 35° C
(c) 15° C
(d) 5° C
Answer:
(a) 25°C

Question 2.
The average temperature in mid-latitudes is
(a) 25° C
(b) 10° C
(c) 16° C
(d) 5° C
Answer:
(c) 16°C

Question 3.
The average temperature near poles is about
(a) 10° C
(b) 20° C
(c) 15° C
(d) 2° C
Answer:
(d) 2°C

Question 4.
With the increasing depth of sea, the intensity of sunrays
(a) increases
(b) decreases
(c) remains constant
(d) is uneven
Answer:
(b) decreases

Question 5.
Seawater upto the depth of 500m is called
(a) ground water
(b) surface water
(c) deep water
(d) saline water
Answer:
(b) surface water

Question 6.
ocean is the most saline ocean in the world.
(a) Pacific
(b) Arctic
(c) Indian
(d) Atlantic
Answer:
(d) Atlantic

Question 7.
The sea lying on the border of Israel and Jordan has a salinity of %o.
(a) 37
(b) 50
(c) 256
(d) 332
Answer:
(d) 332

Question 8.
The buoyancy of the sea water increases because of its
(a) evaporation
(b) salinity
(c) density
(d) high temperature
Answer:
(b) salinity

Question 9.
has an altitude of – 400m.
(a) Baltic Sea
(b) Arabian Sea
(c) Dead Sea
(d) the Mediterranean Sea
Answer:
(c) Dead sea

Question 10.
act as temperature controllers at a global level.
(a) Ocean currents
(b) Sea breeze
(c) Land breeze
(d) Trade winds
Answer:
(a) Ocean currents

Question 11.
is a major porperty of the sea water.
(a) Temperature
(b) Uniform salinity
(c) Buoyancy
(d) Equal Density
Answer:
(a) Temperature

Question 12.
have higher salinity than open seas.
(a) Equatorial seas
(b) Landlocked seas
(c) Freshwater lakes
(d) Seas in polar regions
Answer:
(b) landlocked seas

Question 13.
Temperature decreases upto depth.
(a) 500 m
(b) 1000 m
(c) 1500 m
(d) 2000 m
Answer:
(d) 2000m

Question 14.
In regions where cold currents flow, the surface temperature of ocean water is
(a) high
(b) less
(c) uniform
(d) uneven
Answer:
(b) less

Question 15.
Temperature of seawater changes rapidly with depth in areas.
(a) equatorial
(b) mid latitudinal
(c) temperate
(d) polar
Answer:
(a) equatorial

Question 16.
In seas where the rate of evaporation is than the supply of fresh water, salinity is high.
(a) less
(b) high
(c) same
(d) low
Answer:
(b) high

Question 17.
The salinity of Bay of Bengal is than that of Arabian sea.
(a) less
(b) more
(c) same
(d) equal
Answer:
(a) less

Question 18.
In areas the salinity of sea water is low.
(a) equatorial
(b) mid-latitudinal
(c) temperate
(d) polar
Answer:
(d) polar

Question 19.
The salinity of Battic sea is %.
(a) 332
(b) 32
(c) 37
(d) 7
Answer:
(d) 7

Match the Column:

Answer:
(1-c),
(2- d),
(3 – b)

Answer in one sentence:

Question 1.
What is the major property of seawater?
Answer:
Temperature is a major property of seawater.

Question 2.
What is the average surface temperature of seawater in equatorial areas, mid-latitudes & poles?
Answer:
The average surface temperature of seawater is equatorial areas is around 25°C in mid-latitude it is around 16°C & 2°C near the poles.

Question 3.
After what depth is the seawater temperature uniform everywhere?
Answer:
After 2000m, the temperature of seawater is uniform everywhere

Question 4.
Name the instruments used to measure salinity?
Answer:
Hydrometer, Refractometer and salinometer are used to measure salinity.

Question 5.
Which is the most saline ocean?
Answer:
The Atlantic ocean is the most saline ocean.

Give geographical reasons:

Question 1.
The climate of the earth gets affected by ocean currents.
Answer:

• The ocean currents are generated because of the difference in the properties of seawater.
• They act as temperature controllers at the global level.
• The distribution of temperature gets controlled due to the ocean currents.
• Thus, the climate of the earth gets affected by ocean currents.

Question 2.
Dead Sea has a salinity of 332%0.
Answer:

• The sea lying on the border of Israel and Jordan has a salinity of 332%0.
• The average salinity of ocean is 35%o.
• Jordan is the only large river meeting this sea.
• Low rainfall, low supply of freshwater and high evaporation is the reason of high salinity.

Question 3.
The surface temperature of the sea is not uniform everywhere.
Answer:

• The surface temperature of sea water is not uniform everywhere and it changes with latitudes.
• The surface temperature of the seawater decreases from the equatorial areas towards the poles.
• The average temperature in equatorial areas is around 25° C, it is 16° C in mid-latitudes while it is about 2° C near the poles.
• Besides this, cyclones, rainfall, sea waves, ocean currents, salinity, pollution, convergence flow, seasons, etc. also affect the surface temperature.
• Thus the surface temperature of the sea is not uniform everywhere.

Question 4.
The seas in equatorial calm belt are more saline.
Answer:

• Around 5° N and S of the equator, in the equatorial calm belt, the sky is cloudy for a long period of time and convectional rainfall occurs every day.
• Large rivers like Congo and Amazon in the equatorial regions meet the sea.
• Therefore, supply of freshwater abundant too.
• But because of higher temperatures, rate of evaporation is more and therefore, the seas in these areas are more saline.

Explain

Question 1.
Factors affecting surface water temperature
Answer:

• Temperature is a major property of the seawater. The surface temperature of the seawater is not uniform everywhere. This is dependent on different factors.
• Latitudinally, the surface temperature of the seawater decreases from the equatorial areas towards the poles.
• Besides this, cyclones, rainfall, sea waves, ocean currents, salinity, pollution, convergence flow and seasons also affect the surface temperature.
• Regions where cold ocean currents flow, the surface temperature of ocean water is less. The regions where the warm currents move, the temperature increase.

Question 2.
Density of sea water
Answer:

• Temperature and salinity are the two properties of sea water that control the density of the sea water.
• If temperature reduces, density of water increases.
• Cold water is denser, and so is saline water.
• As compared to salinity, temperature affects the density more. Hence, sometimes, more saline water has lower temperature at the surface.
• Sea water having higher temperature and low salinity, can have lower density.

Question 3.
Measurement of salinity of sea water.
Answer:

• The weight of all dissolved salts in water in ratio of parts per thousand of water is called the salinity of seawater.
• For example, if the weight of dissolved salts in 1000g (1 kg) of seawater is 40g, then the salinity is 40%o i.e. 40 per thousand parts.
• Hydrometer, refractometer and salinometer are also used to measure salinity.

Question 4.
Factors affecting salinity of sea water.
Answer: