NCERT Solutions for Class 9 Social Science Chapter 8: Building Blocks in Economics – The Problem of Choice (Question Answers) The Big Questions: 1. What does economics deal with? Answer: Economics deals with how individuals, enterprises and governments make choices. It helps in the efficient use of limited resources to satisfy unlimited needs and wants . It explains how consumers, producers, governments and financial institutions interact in an economy. It studies the production, distribution and consumption of goods and services. It helps in making informed economic decisions using data and analysis. 2. What are the key questions in economics? Answer: What to Produce? – Decide which goods and services should be produced and in what quantity. How to Produce? – Decide which methods, resources and technologies should be used for production. For Whom to Produce? – Decide who will receive the goods and services and how they will be distributed. 3. How do differe...
Exercise Question Answers Chapter 1 Geographical Diversity of India Subject Social Science Class 7
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Q1. What, in your opinion, are two important geographical features of India? Why do you think they are important?
Answer:- Geographical features of India: Mountains, Plains, Desert, Peninsular Plateau, Islands etc.
Their importance:
1. The Himalayas protect India from cold winds and foreign invasions.
2. The Northern Plains are fertile and support agriculture.
3. The Thar Desert showcases adaptation and cultural richness in arid regions.
4. Rivers originating from mountains provide water for farming and daily useus.
5. Coastal areas promote trade, fishing, and tourism.
Q2. What do you think India might have looked like if the Himalayas did not exist?Write a short note , sketch a drawing to express your imagination.
Answer:- If the Himalayas did not exist:
1. Northern India would face extremely cold winds from Central Asia.
2. Rivers like the Ganga may not originate, affecting agriculture.
3. Less natural protection from invasions.
4. Possible climate changes with more desert-like conditions in the north.
5. Overall biodiversity and monsoon system would be affected.
Q3. India has been called a ‘mini-continent’. Based on what you have read , why do you think is so?
Answer:-
1. It has all major landforms: mountains, plains, plateaus, deserts, coasts, and islands.
2. Diverse climatic conditions across different regions.
3. Rich variety of flora and fauna.
4. Multiple languages, cultures, and traditions exist together.
5. A wide range of natural resources and economic activities.
Q4. Follow one of India's big rivers from where it starts to where it meets the ocean.What are the different ways in which people might utilise this river along its journey? Discuss in groups in your class.
Answer:-
Utilisation of a river from source to sea:
1. Source: Religious worship and scenic tourism.
2. Middle course: Irrigation for agriculture and drinking water supply.
3. Flowing towns: Industrial use and domestic water usage.
4. Delta region: Fishing, agriculture, and transport.
5. Mouth: Ports and marine biodiversity support.
Q5. Why is the southern part of India is referred to as a peninsular plateau?
Answer:-
1. It is surrounded by water on three sides: Arabian Sea, Indian Ocean, Bay of Bengal.
2. Lies on a stable ancient landmass or block.
3. Formed by volcanic and tectonic activities over time.
4. Made of hard, crystalline rocks and rich in mineral.
5. Elevated flat surface forms the Deccan and Chotanagpur plateaus.
Q6. Which UNESCO Heritage Site mentioned in this chapter did you find more interesting? Write a short paragraph to describe what about it is interesting?
Answer:-
Interesting UNESCO Heritage Site from the chapter (generic sample):
Example: Sundarbans (if mentioned in text).
1. World's largest mangrove forest.
2. Home to Bengal Tiger and other endangered spespecies.
3. Acts as a natural barrier against cyclones and floods.
4. Unique ecosystem with high biodiversity.
Q7. Look at the two maps of India, physical as well as political given at the end of this book. identify the place you are at now? Which physical feature of India would you use to describe its location?
Answer: Choose anyone atea from the given below:
If you live in Jaisalmer, Rajasthan (Desert Region):
1. Located in the Thar Desert, which is arid and sandy.
2. Characterized by extremely hot summers and very little rainfall.
3. Landforms include sand dunes and sparse vegetation.
4. Known for camel rearing, traditional architecture, and desert tourism.
5. Water scarcity makes rainwater harvesting essential.
OR
If you live in Karnataka Plateau (Peninsular Plateau):
1. Part of the Deccan Plateau, made of hard, old rocks.
2. Land is elevated and flat with hilly areas in the Western Ghats.
3. Rich in minerals and ideal for plantation crops like coffee and spices.
4. Rivers like Krishna and Kaveri flow through deep valleys.
5. The region has a mild climate and red or black soil.
OR
If you live in Himachal Pradesh (Mountain Region):
1. Lies in the Himalayan mountain range, with high altitudes.
2. Landforms include snow-capped peaks, valleys, and glaciers.
3. Known for apple orchards, tourism, and terrace farming.
4. Cold climate with snowfall in winters.
5. Natural barriers like mountains influence defense and climate.
OR
If you live near the Ganga River in Uttar Pradesh (Northern Plains):
1. Located in the fertile Northern Plains formed by river deposits.
2. Flat land with alluvial soil, ideal for wheat, rice, and sugarcane farming.
3. Ganga river provides drinking water, irrigation, and transport.
4. Densely populated with important cultural and religious sites.
5. Subject to flooding during monsoon, but very productive agriculturally.
Q8. Food preservation techniques differ from place to place across India. They are adapted to local conditions. Do a class project. Gather different methods of preserving food. Hint: Drying vegetables when they are in season for use during the off season.
Answer: Food preservation techniques in different regions:
1. Drying vegetables/fruits in sunlight (common in Rajasthan, Tamil Nadu).
2. Pickling (popular across India in different forms).
3. Smoking fish/meat (used in Northeast and coastal regregions.
4. Fermentation for foods like idli/dosa batter in South India.
5. Use of jaggery or sugar syrup in sweets for longer shelf life.
Q9. Despite having such different regions (mountains, deserts, plains, coasts), India remains one country. How do you think our geography has helped unite people?
Answer:
1. Rivers connect different regions economically and culturally.
2. Mountain passes allowed historical trade and cultural exchanges.
3. Monsoon affects all, creating shared agricultural cycles.
4. Festivals linked to geography celebrated across regions.
5. Geographic interdependence promotes national integration.
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To Learn More In Text Questions Click Below:
Chapter 1- Geographical Diversity of India
Chapter 2- Understanding the Weather
Chapter 3- Climates of India
Chapter 4- New Beginnings: Cities and States
Chapter 5-The Rise of Empires
Chapter 6- The Age of Reorganisation
Chapter 7- The Gupta Era: An Age of Tireless Creativity
Chapter 8- How the Land Becomes Sacred
Chapter 9 -From the Rulers to the Ruled: Types of Governments
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MCQs:
Chapter 1- Geographical Diversity of India
Chapter 2- Understanding the Weather
Chapter 3- Climates of India
Chapter 4- New Beginnings: Cities and States
Chapter 5- The Rise of Empires
Chapter 6- The Age of Reorganisation
Chapter 7 – The Gupta Era: An Age of Tireless Creativity
Chapter 8- How the Land Becomes Sacred
Chapter 9 -From the Rulers to the Ruled: Types of Governments
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NCERT Solutions:
Chapter 1- Geographical Diversity of India
Chapter 2- Understanding the Weather
Chapter 3- Climates of India
Chapter 4- New Beginnings: Cities and States
Chapter 5-The Rise of Empires
Chapter 6- The Age of Reorganisation
Chapter 7 – The Gupta Era: An Age of Tireless Creativity
Chapter 8- How the Land Becomes Sacred
Chapter 9 -From the Rulers to the Ruled: Types of Governments
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