Exercise Solutions Available
Step-by-step answers for all textbook questions in this chapter
How to Use This Page
1. Read the textbook chapter first. These solutions supplement — not replace — the Samacheer Kalvi textbook. 2. Attempt every exercise question on your own before checking the answers here. 3. Use the Key Concepts section for quick revision before exams. 4. Focus on the explanations after each answer, not just the correct option — they contain exam-worthy details. 5. Revisit the Common Mistakes and Exam Checklist the night before your exam.
Key Concepts (Quick Recap)
- World War II ended in 1945, creating a new world order dominated by two superpowers: the USA (capitalist) and the USSR (communist) — the Cold War era.
- Decolonisation (1940s–1970s): European empires in Asia and Africa collapsed; India (1947), Indonesia (1945), Ghana (1957), Algeria (1962), and many others gained independence.
- The United Nations was founded on 24 October 1945 with 51 members (now 193); its charter aims to maintain peace, promote human rights, and foster development.
- UN agencies: UNESCO (education/culture), WHO (health), UNICEF (children), UNHCR (refugees), ILO (labour), FAO (food/agriculture).
- The Non-Aligned Movement (NAM) was founded in 1961 at Belgrade by Nehru (India), Tito (Yugoslavia), Nasser (Egypt), Sukarno (Indonesia), and Nkrumah (Ghana) to avoid alignment with either Cold War bloc.
- Globalisation accelerated after the 1990s (fall of USSR, liberalisation, internet), connecting economies through trade, MNCs, and digital technology.
- Environmental movements: Stockholm Conference (1972), Brundtland Report (1987), Rio Earth Summit (1992), Kyoto Protocol (1997), Paris Agreement (2015).
- Terrorism: 9/11 attacks (2001) reshaped global security; the US-led "War on Terror" and its consequences dominate contemporary geopolitics.
- Digital Revolution: The internet (commercialised 1990s), mobile phones, and social media transformed communication, commerce, and governance.
- The European Union evolved from the European Coal and Steel Community (1951) to the Maastricht Treaty (1992), creating a single market and common currency (Euro).
- Human Rights: The Universal Declaration of Human Rights (1948) established fundamental rights as a global standard.
I. Choose the Best Answer
Q1. The United Nations Organisation was founded in the year
- (a) 1942
- (b) 1944
- (c) 1945
- (d) 1948
Q2. Which country was the first to gain independence in Africa after World War II?
- (a) Algeria
- (b) Ghana
- (c) Libya
- (d) Kenya
Q3. The headquarters of the United Nations is located in
- (a) Geneva
- (b) London
- (c) New York
- (d) Paris
Q4. The Non-Aligned Movement was founded in the year
- (a) 1955
- (b) 1961
- (c) 1965
- (d) 1970
Q5. The Brundtland Report, which introduced the concept of "sustainable development," was published in
- (a) 1972
- (b) 1987
- (c) 1992
- (d) 1997
Q6. The Universal Declaration of Human Rights was adopted by the UN in
- (a) 1945
- (b) 1946
- (c) 1948
- (d) 1950
Q7. Which of the following is NOT a permanent member of the UN Security Council?
- (a) China
- (b) France
- (c) Germany
- (d) United Kingdom
Q8. The Kyoto Protocol on climate change was adopted in
- (a) 1992
- (b) 1997
- (c) 2005
- (d) 2015
Q9. The process of globalisation was accelerated by
- (a) The end of the Cold War
- (b) The rise of the internet
- (c) Trade liberalisation policies
- (d) All of the above
Q10. The European Union was formally established by the
- (a) Treaty of Rome (1957)
- (b) Single European Act (1986)
- (c) Maastricht Treaty (1992)
- (d) Lisbon Treaty (2007)
II. Fill in the Blanks
1. The United Nations Organisation was officially established on 24 October 1945. 2. The UN agency that works for children's welfare is UNICEF (United Nations Children's Fund). 3. The first Asian country to gain independence after World War II was Indonesia (1945). 4. The Non-Aligned Movement was founded at the Belgrade Conference. 5. The concept of "sustainable development" was introduced by the Brundtland Report of 1987. 6. The terrorist attacks on the World Trade Center occurred on 11 September 2001. 7. The World Trade Organisation (WTO) was established in 1995, replacing GATT. 8. The Paris Agreement on climate change was signed in 2015. 9. The UN agency responsible for refugees is UNHCR (United Nations High Commissioner for Refugees). 10. The Cold War ended with the dissolution of the Soviet Union in 1991.
III. True or False
1. The League of Nations was succeeded by the United Nations. — True. The League of Nations (1919–1946) was dissolved after World War II and replaced by the UN, which addressed the League's structural weaknesses.
2. Decolonisation was completed by 1950. — False. Decolonisation was a long process spanning the 1940s to the 1970s and beyond. Most African nations gained independence only in the 1960s; some territories remained colonies into the 1970s.
3. The UN Security Council has 15 members, including 5 permanent members. — True. The Security Council has 5 permanent members (P5) with veto power and 10 non-permanent members elected for two-year terms.
4. NAM was primarily a military alliance. — False. NAM was a political and diplomatic movement that explicitly rejected military alliances. Its purpose was to maintain independence from both the US and Soviet blocs during the Cold War.
5. The Rio Earth Summit was held in 1972. — False. The Rio Earth Summit (United Nations Conference on Environment and Development) was held in 1992 in Rio de Janeiro. The 1972 conference was the Stockholm Conference on the Human Environment.
6. The digital revolution has reduced economic inequality across the world. — False. While the digital revolution created new opportunities, it has also widened the digital divide — the gap between those with access to technology and those without — contributing to increased inequality.
7. UNESCO stands for United Nations Educational, Scientific and Cultural Organization. — True. UNESCO, headquartered in Paris, promotes international cooperation in education, science, culture, and communication.
8. The Cold War involved direct military conflict between the USA and the USSR. — False. The Cold War was characterised by ideological rivalry, proxy wars, and an arms race — but never direct military confrontation between the two superpowers. Hence the term "Cold" War.
9. Ghana was the first Sub-Saharan African country to gain independence. — True. Ghana (formerly Gold Coast) gained independence on 6 March 1957 under Kwame Nkrumah, becoming the first Sub-Saharan African nation to do so.
10. The WTO replaced GATT in 1995. — True. The World Trade Organisation was established on 1 January 1995, replacing the General Agreement on Tariffs and Trade (GATT) and expanding its scope to services and intellectual property.
IV. Match the Following
Set 1
| Column A | Column B | ||
|---|---|---|---|
| (i) | UNESCO | (1) | Children's welfare |
| (ii) | WHO | (2) | Education, science, culture |
| (iii) | UNICEF | (3) | Refugees |
| (iv) | UNHCR | (4) | International health |
| (v) | ILO | (5) | Labour standards |
- (i) — 2: UNESCO → Education, science, culture
- (ii) — 4: WHO → International health
- (iii) — 1: UNICEF → Children's welfare
- (iv) — 3: UNHCR → Refugees
- (v) — 5: ILO → Labour standards
Set 2
| Column A | Column B | ||
|---|---|---|---|
| (i) | 1945 | (1) | Belgrade Conference (NAM) |
| (ii) | 1947 | (2) | UN founded |
| (iii) | 1957 | (3) | Indian independence |
| (iv) | 1961 | (4) | Ghana's independence |
| (v) | 1992 | (5) | Rio Earth Summit |
- (i) — 2: 1945 → UN founded
- (ii) — 3: 1947 → Indian independence
- (iii) — 4: 1957 → Ghana's independence
- (iv) — 1: 1961 → Belgrade Conference (NAM)
- (v) — 5: 1992 → Rio Earth Summit
V. Short Answer Questions
Q1. What is decolonisation? Name three countries that gained independence after World War II.
Q2. What are the main organs of the United Nations?
Q3. Explain the significance of the Non-Aligned Movement (NAM).
- It provided newly independent nations a third path during the Cold War, refusing to align with either the US or Soviet bloc.
- It promoted peaceful coexistence, disarmament, and anti-colonialism.
- It gave developing countries a collective voice in international forums like the UN.
- Leaders like Nehru (India), Tito (Yugoslavia), and Nasser (Egypt) used NAM to assert the sovereignty and dignity of the Third World.
- It advocated for a New International Economic Order (NIEO) to address economic inequalities between developed and developing nations.
Q4. What is globalisation? What are its positive and negative effects?
| Positive effects | Negative effects |
|---|---|
| Increased trade and economic growth | Widening inequality between rich and poor nations |
| Access to global markets for developing countries | Loss of cultural identity (cultural homogenisation) |
| Technology transfer and innovation | Exploitation of labour in developing countries |
| Improved communication and information access | Environmental degradation from industrial expansion |
| Greater political cooperation | Economic crises spread faster (contagion effect) |
Q5. Describe the major environmental movements and conferences in the contemporary world.
| Year | Event | Significance |
|---|---|---|
| 1972 | Stockholm Conference | First UN conference on the environment; established UNEP |
| 1987 | Brundtland Report | Defined "sustainable development" |
| 1992 | Rio Earth Summit | Adopted Agenda 21; conventions on climate change and biodiversity |
| 1997 | Kyoto Protocol | Set binding greenhouse gas emission targets for developed nations |
| 2015 | Paris Agreement | Global commitment to limit warming to 1.5°C above pre-industrial levels |
These conferences mark the global community's growing recognition of environmental crisis and the shift from national to international responsibility.
Q6. What is the impact of terrorism on the contemporary world?
- 9/11 attacks (2001) triggered the US-led "War on Terror," including the invasions of Afghanistan (2001) and Iraq (2003).
- Security paradigm shift: Nations prioritised internal security, enacting laws like the Patriot Act (USA) and POTA (India).
- Rise of non-state actors: Groups like Al-Qaeda and ISIS demonstrated that non-state actors can threaten nation-states.
- Human and economic costs: Thousands of civilian deaths; billions spent on security and military operations.
- Refugee crises: Conflict zones have displaced millions, creating humanitarian emergencies.
- Erosion of civil liberties: Anti-terror laws sometimes curtail privacy and freedom of expression.
- Global cooperation: Intelligence-sharing and international counter-terrorism frameworks (UNSC Resolution 1373) emerged.
VI. Detailed Answer Questions
Q1. Discuss the causes, course, and consequences of decolonisation in Asia and Africa.
Causes: 1. Impact of World War II: European colonial powers (Britain, France, Netherlands) were economically and militarily weakened. The war shattered the myth of European invincibility. 2. Rise of nationalist movements: Leaders like Gandhi (India), Sukarno (Indonesia), Nkrumah (Ghana), and Nyerere (Tanzania) mobilised mass movements for independence. 3. Support from the USA and USSR: Both superpowers opposed colonialism — the USA for ideological reasons (anti-imperialism), the USSR to expand communist influence. 4. UN Charter: Article 1 of the UN Charter (1945) recognised the principle of self-determination, providing international legitimacy to independence movements. 5. Economic unsustainability: Colonies became financial burdens rather than assets after the war.
Course:
| Region | Country | Year | Key Leader |
|---|---|---|---|
| Asia | India | 1947 | Jawaharlal Nehru / Mahatma Gandhi |
| Asia | Indonesia | 1945 | Sukarno |
| Asia | Vietnam | 1954 | Ho Chi Minh |
| Africa | Ghana | 1957 | Kwame Nkrumah |
| Africa | Algeria | 1962 | Ahmed Ben Bella |
| Africa | Kenya | 1963 | Jomo Kenyatta |
The "Winds of Change" speech by British PM Harold Macmillan (1960) symbolised the inevitable shift.
Consequences:
- Creation of new nations: Over 80 new countries emerged between 1945 and 1980.
- Cold War battlegrounds: Newly independent nations became proxy war zones (Korea, Vietnam, Angola, Congo).
- Economic challenges: Colonial economies were structured for extraction, not development; many nations inherited poverty, underdeveloped infrastructure, and single-crop dependence.
- Border conflicts: Colonial borders (drawn arbitrarily) caused ethnic tensions and territorial disputes (India-Pakistan, Israel-Palestine, Nigeria-Biafra).
- Rise of NAM: Newly independent nations formed the Non-Aligned Movement to resist Cold War pressures.
Q2. Explain the structure, functions, and achievements of the United Nations.
Structure:
| Organ | Function | Key Feature |
|---|---|---|
| General Assembly | Deliberative; discusses all international issues | One vote per member; resolutions are recommendations |
| Security Council | Maintains international peace and security | 5 permanent members (P5) with veto; 10 non-permanent members |
| ECOSOC | Coordinates economic and social work | 54 members; oversees UN agencies |
| ICJ | Settles legal disputes between states | 15 judges; located in The Hague |
| Secretariat | Administrative functions | Headed by Secretary-General |
| Trusteeship Council | Supervised trust territories | Suspended 1994 |
Functions: 1. Peacekeeping: UN peacekeeping missions (over 70 since 1948) monitor ceasefires, protect civilians, and support elections. 2. Human Rights: UDHR (1948), International Covenants on Civil and Political Rights (1966), Convention on the Rights of the Child (1989). 3. Economic Development: UNDP, World Bank, IMF support developing nations. 4. Humanitarian Aid: UNHCR, WFP, UNICEF provide relief in crises. 5. International Law: ICJ adjudicates disputes; treaties on climate, trade, and disarmament.
Key Achievements:
- Decolonisation: Supported over 80 nations gaining independence.
- Peacekeeping: Helped end conflicts in Korea, Congo, Cyprus, East Timor, and others.
- Health: WHO eradicated smallpox (1980) and nearly eradicated polio.
- Children: UNICEF has reduced child mortality and expanded education access globally.
- Climate: Facilitated the Paris Agreement (2015).
Limitations:
- The P5 veto power often paralyses the Security Council.
- No standing army; depends on member states for troop contributions.
- Limited enforcement power; resolutions are often ignored by powerful nations.
Q3. Discuss the impact of globalisation on the contemporary world — economic, social, and political dimensions.
Economic Impact:
- Trade liberalisation: WTO (est. 1995) reduced tariffs; global trade grew from $5 trillion (1990) to over $25 trillion (2020s).
- Rise of MNCs: Multinational corporations operate across borders, creating jobs but also exploiting cheap labour and weak environmental regulations.
- Financial integration: Capital flows freely across borders, enabling investment but also causing financial crises (Asian Financial Crisis 1997, Global Financial Crisis 2008).
- Outsourcing and offshoring: Jobs moved to low-cost countries (India's IT sector is a key beneficiary).
- Inequality: Global wealth is concentrated — the richest 1% own more than half the world's wealth.
Social Impact:
- Cultural exchange: Global media, internet, and travel spread ideas, music, food, and fashion across borders.
- Cultural homogenisation: Western (particularly American) culture dominates, threatening local languages and traditions.
- Migration: Increased movement of people for work and education; diaspora communities reshape host societies.
- Digital connectivity: Social media, smartphones, and the internet connect billions, enabling activism (Arab Spring, #MeToo) and misinformation.
Political Impact:
- Erosion of national sovereignty: International agreements (trade, climate, human rights) limit what governments can do independently.
- Rise of nationalism: As a reaction against globalisation, nationalist movements have gained strength (Brexit, populist leaders).
- Global governance: International institutions (UN, WTO, ICC) shape policies but are often criticised as undemocratic.
- Environmental politics: Climate change demands coordinated action; the Paris Agreement represents a new form of global governance.
Q4. Explain the background, key events, and consequences of the Cold War.
Background:
- After World War II (1945), the USA (capitalist, democratic) and the USSR (communist, authoritarian) emerged as rival superpowers.
- Their ideological, economic, and military rivalry — without direct armed conflict — became known as the Cold War (1947–1991).
- The term "Cold War" was coined by Bernard Baruch (1947) and popularised by Walter Lippmann.
Key Events:
| Year | Event | Significance |
|---|---|---|
| 1947 | Truman Doctrine | US pledged support to nations resisting communism |
| 1947 | Marshall Plan | US economic aid to rebuild Western Europe |
| 1948–49 | Berlin Blockade | USSR blocked West Berlin; US airlifted supplies |
| 1949 | NATO formed | Western military alliance against Soviet threat |
| 1950–53 | Korean War | First major proxy war; North (communist) vs. South (capitalist) |
| 1955 | Warsaw Pact | Soviet military alliance in response to NATO |
| 1961 | Berlin Wall built | Physical division of East and West Berlin |
| 1962 | Cuban Missile Crisis | Closest the world came to nuclear war |
| 1979–89 | Soviet-Afghan War | USSR's "Vietnam"; Mujahideen supported by US |
| 1989 | Berlin Wall fell | Symbolised the end of the Cold War |
| 1991 | USSR dissolved | Cold War officially ended |
Consequences: 1. Arms race: Both superpowers built massive nuclear arsenals capable of destroying the world several times over (Mutually Assured Destruction — MAD). 2. Proxy wars: Korea, Vietnam, Afghanistan, Angola, Nicaragua — millions died in conflicts fuelled by superpower rivalry. 3. Space race: Competition led to Sputnik (1957), Yuri Gagarin (1961), and the Moon landing (1969). 4. Division of the world: Europe split by the Iron Curtain; Germany divided into East and West (1949–1990). 5. NAM: Non-aligned countries sought to avoid entanglement in either bloc. 6. End of USSR (1991): The Soviet collapse left the USA as the sole superpower, accelerating globalisation but also creating new conflicts.
Q5. Discuss the role of the digital revolution in shaping the contemporary world.
Origins and Development:
- The internet evolved from ARPANET (1969), a US military project, into a global network.
- The World Wide Web was invented by Tim Berners-Lee in 1989 and opened to the public in 1991.
- Mobile phones (first call 1973; smartphones from 2007) and social media (Facebook 2004, Twitter 2006) further accelerated connectivity.
Impact on Communication:
- Instant global communication — email, messaging, video calls.
- Social media enabled citizen journalism, political mobilisation (Arab Spring 2010–12), and the spread of both information and misinformation.
- Language barriers reduced by translation technology.
Impact on Economy:
- E-commerce (Amazon, Flipkart) transformed retail.
- Digital payment systems (UPI, mobile banking) brought financial inclusion to billions.
- The gig economy (Uber, Swiggy) created new employment but also precarity.
- Automation and AI are reshaping labour markets, displacing some jobs while creating others.
Impact on Governance:
- E-governance: Digital IDs (Aadhaar), online tax filing, digital land records.
- Surveillance: Mass data collection by governments and corporations raises privacy concerns.
- Cyber warfare: State-sponsored hacking, election interference, and infrastructure attacks.
Impact on Society:
- Democratization of information — anyone can publish content.
- Digital divide: Those without internet access are excluded from opportunities.
- Mental health: Social media linked to anxiety, depression, and polarisation.
- Remote work and education: COVID-19 (2020) accelerated the shift to digital platforms.
Challenges:
- Data privacy and surveillance (GDPR, data localisation debates).
- Misinformation and deepfakes undermining trust.
- Cybersecurity threats to critical infrastructure.
- Digital addiction and declining attention spans.
Common Mistakes to Avoid
1. Confusing decolonisation dates: India gained independence in 1947 (not 1950 — that is when the Republic was declared). Ghana was the first Sub-Saharan African nation (1957), but Libya gained independence earlier (1951).
2. Saying the Cold War involved direct US-USSR military conflict: It did not — hence "Cold" War. Conflicts were fought through proxies (Korea, Vietnam, Afghanistan).
3. Mixing up UN agencies: UNESCO (education/culture) ≠ UNICEF (children) ≠ UNHCR (refugees) ≠ WHO (health). Each has a specific mandate.
4. Confusing Stockholm (1972) with Rio (1992): Stockholm was the first UN environment conference; Rio was the Earth Summit that produced Agenda 21. They are 20 years apart.
5. Overstating globalisation's benefits: Globalisation has also increased inequality, cultural homogenisation, and environmental damage. Present a balanced view in exam answers.
6. Saying NAM was a military alliance: NAM was explicitly a non-military, political movement. Its purpose was to avoid alignment with either Cold War bloc.
7. Forgetting that the Cold War ended in 1991: The symbolic end was the fall of the Berlin Wall (1989), but the USSR formally dissolved on 26 December 1991.
Exam Checklist
- [ ] Can you list the 6 main organs of the UN and their functions?
- [ ] Can you name 5+ UN agencies (UNESCO, WHO, UNICEF, UNHCR, ILO, FAO) and their mandates?
- [ ] Can you explain the causes, course, and consequences of decolonisation with specific country examples and dates?
- [ ] Can you trace the key events of the Cold War in chronological order (1947–1991)?
- [ ] Can you discuss the structure and significance of NAM (1961) and its founding leaders?
- [ ] Can you explain globalisation's positive and negative impacts (economic, social, political)?
- [ ] Can you list the major environmental conferences (1972, 1987, 1992, 1997, 2015) with their key outcomes?
- [ ] Can you discuss the digital revolution's impact on communication, economy, governance, and society?
- [ ] Can you explain the impact of terrorism (especially 9/11) on global politics and security?
- [ ] Do you remember the key dates: 1945 (UN), 1947 (Indian independence), 1957 (Ghana), 1961 (NAM), 1989 (Berlin Wall), 1991 (USSR dissolved), 2001 (9/11)?