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Step-by-step answers for all textbook questions in this chapter
India: Climate, Vegetation and Wildlife: NCERT Exercise Solutions
Welcome to the complete NCERT exercise solutions for Class 6 Social Science Geography Chapter 8 — India: Climate, Vegetation and Wildlife. This page covers every intext and chapter-end question from the NCERT textbook with detailed, exam-ready answers. Use this guide to revise the chapter thoroughly and score well in your Social Science exam.
How to Use This Page
1. Read the Key Concepts table first for a quick recap of important terms. 2. Go through the Intext Questions to understand the concepts as they appear in the chapter. 3. Study the Chapter-End Exercise Questions — these are the most important for your exam. Each answer is written in simple, mark-scoring language. 4. Practise the MCQ section to test your understanding. 5. Review the Common Mistakes and Exam Checklist before your exam to avoid losing marks.
Key Concepts (Quick Recap)
| Term | Meaning |
|---|---|
| Climate | The average weather conditions of a large area over a long period (more than 30 years) |
| Weather | The state of the atmosphere at a particular place and time (day-to-day condition) |
| Monsoon | A seasonal wind pattern that brings heavy rainfall to India; the word comes from the Arabic word "Mausim" meaning season |
| Tropical Rainforest | Dense forests found in areas with heavy rainfall (over 200 cm) and high temperature throughout the year |
| Deciduous Forest | Forests where trees shed their leaves in the dry season to conserve water; also called monsoon forests |
| Thorny Bushes | Sparse vegetation found in dry regions with less than 70 cm rainfall; plants have thorns and deep roots |
| Mountain Vegetation | Vegetation that changes with altitude on mountains — tropical at the base, temperate in the middle, alpine at the top |
| Mangrove Forests | Dense forests found in coastal areas flooded by tides; trees have breathing roots called pneumatophores |
| Wildlife | All living organisms (animals, birds, insects, aquatic life) found in their natural habitats |
| Biosphere Reserve | A protected area for conserving biodiversity, conducting research, and promoting sustainable development |
| National Park | A protected area where wildlife and their habitats are preserved; human activities like hunting and grazing are prohibited |
| Endangered Species | Species whose numbers are decreasing and are at risk of becoming extinct (e.g., Asiatic lion, Bengal tiger) |
| Season | A division of the year marked by particular weather patterns; India has four main seasons |
Intext Questions
Q: What is the difference between climate and weather?
Climate refers to the average weather conditions of a place over a long period of time (usually more than 30 years). Weather, on the other hand, refers to the day-to-day condition of the atmosphere at a particular place and time. For example, "India has a tropical monsoon climate" describes climate, while "it is raining today in Delhi" describes weather.
Q: Why does India have different seasons?
India experiences different seasons because of the tilt of the Earth's axis and the revolution of the Earth around the Sun. The movement of the Sun between the Tropic of Cancer and the Tropic of Capricorn causes variations in temperature and rainfall across the country. The seasonal reversal of wind direction (monsoon) also creates distinct weather patterns — the southwest monsoon brings rain, while the retreating monsoon brings drier conditions.
Q: How does vegetation depend on climate?
The type of vegetation in a region depends directly on the climate — especially temperature and rainfall. Areas with heavy rainfall and high temperatures support dense tropical rainforests. Regions with moderate rainfall have deciduous forests. Dry areas with very little rainfall have thorny bushes and shrubs. Cold mountainous regions have alpine vegetation. In short, temperature, rainfall, and soil type together determine what kind of plants can grow in an area.
Q: Why do the Western Ghats and the northeastern region receive more rainfall?
The Western Ghats and the northeastern region of India receive heavy rainfall because the southwest monsoon winds, which carry moisture from the Arabian Sea and the Bay of Bengal, strike these areas first. The mountains force the moist winds to rise, cool, and release rain. This is called orographic rainfall. Areas like Mawsynram and Cherrapunji in Meghalaya are among the wettest places on Earth.
Q: Why are mangrove forests important?
Mangrove forests are important because they protect coastal areas from erosion, storms, and tsunamis. They act as a natural barrier between the sea and the land. Mangroves also provide habitat for many species of fish, birds, and crustaceans. The Sundari trees in the Sundarbans are a well-known example of mangrove vegetation.
Chapter-End Exercise Questions
Q1: What is the difference between weather and climate?
| Feature | Weather | Climate |
|---|---|---|
| Definition | Day-to-day condition of the atmosphere at a particular place | Average weather conditions of a place over a long period (30+ years) |
| Time period | Short term (hours, days) | Long term (decades) |
| Changes | Changes frequently, even within a day | Remains relatively stable |
| Example | "It is cloudy today" | "Chennai has a tropical climate" |
Weather tells us what it is like outside right now, while climate tells us what kind of weather a place usually has over many years. Weather can change from hour to hour, but climate changes very slowly.
Q2: What are the elements of weather?
The main elements of weather are:
1. Temperature — how hot or cold the air is at a given time and place. 2. Humidity — the amount of water vapour present in the air. 3. Rainfall — the amount of precipitation (rain, snow, hail) received in an area. 4. Wind speed — how fast the wind is blowing and from which direction. 5. Air pressure — the weight of the air above a particular area.
These elements are measured at weather stations using instruments like thermometers (temperature), barometers (air pressure), rain gauges (rainfall), and anemometers (wind speed). Together, they describe the weather of a place at a specific time.
Q3: What are the different seasons in India? Describe each briefly.
India has four major seasons:
Q4: Why do we have different types of vegetation in different parts of India?
India has different types of vegetation in different parts because of the following reasons:
1. Variation in rainfall: Some areas receive very heavy rainfall (over 200 cm) like the Western Ghats and northeastern states, supporting tropical rainforests. Other areas like Rajasthan receive less than 70 cm rainfall and have thorny bushes.
2. Variation in temperature: The temperature varies from the hot plains of northern India to the cold regions of the Himalayas. This leads to different types of vegetation in different zones.
3. Variation in soil type: Different soils support different plants. For example, alluvial soil in the north supports broadleaf forests, while sandy soil in the desert supports cacti and thorny plants.
4. Altitude: As we go higher in the mountains, the temperature decreases, and the type of vegetation changes from tropical at the base to alpine at the top.
5. Location and topography: Coastal areas have mangrove forests, while interior dry regions have scrub vegetation. The Western Ghats block monsoon winds and create a rain-shadow effect, leading to different vegetation on either side.
Thus, the diversity of climate, soil, altitude, and topography across India results in a rich variety of vegetation types.
Q5: Name the different types of vegetation found in India.
The five major types of vegetation found in India are:
Q6: What steps have been taken to protect wildlife in India?
Several important steps have been taken to protect wildlife in India:
1. National Parks: Protected areas where wildlife and their habitats are preserved. Human activities like hunting, grazing, and tree cutting are strictly prohibited. India has over 100 national parks. Examples: Jim Corbett National Park (Uttarakhand), Kaziranga National Park (Assam), Gir National Park (Gujarat).
2. Wildlife Sanctuaries: Protected areas where wild animals can live in their natural habitat without being hunted. Limited human activities may be permitted. India has over 550 wildlife sanctuaries. Examples: Bharatpur Bird Sanctuary (Rajasthan), Mudumalai Wildlife Sanctuary (Tamil Nadu).
3. Biosphere Reserves: Large protected areas that conserve biodiversity, promote research, and support sustainable development. They include core zones (strictly protected), buffer zones, and manipulation zones. Examples: Nilgiri Biosphere Reserve, Sundarbans Biosphere Reserve, Nanda Devi Biosphere Reserve.
4. Project Tiger: Launched in 1973 to protect the Bengal tiger and its habitat. It has been successful in increasing the tiger population. There are now over 50 tiger reserves in India.
5. Project Elephant: Launched in 1992 to protect elephants and their habitats and to address issues of human-elephant conflict.
6. Wildlife Protection Act, 1972: A law enacted to protect wild animals, birds, and plants. Hunting of endangered species is punishable under this Act.
7. Convention on International Trade in Endangered Species (CITES): India is a signatory to this international agreement that ensures international trade in wild animals and plants does not threaten their survival.
8. Awareness programmes: Schools, NGOs, and government agencies conduct awareness campaigns to educate people about the importance of wildlife conservation.
Q7: Fill in the blanks
(a) The word "monsoon" comes from the Arabic word Mausim which means season.
(b) The western coast of India receives rainfall from the southwest monsoon winds.
(c) The temperature decreases from the equator towards the poles.
(d) Mawsynram in Meghalaya receives the highest rainfall in the world.
(e) The Sundari tree is the most well-known tree of the mangrove forests.
(f) The wildlife protection Act was enacted in the year 1972.
Q8: True or False
Q9: Match the Column
| Column A | Column B |
|---|---|
| (i) Tropical Rainforest | (c) More than 200 cm rainfall |
| (ii) Tropical Deciduous Forest | (e) Most widespread in India |
| (iii) Thorny Bushes | (a) Less than 70 cm rainfall |
| (iv) Mountain Vegetation | (d) Changes with altitude |
| (v) Mangrove Forests | (b) Breathing roots (pneumatophores) |
MCQ Practice
Choose the correct answer for each question.
Common Mistakes to Avoid
1. Confusing weather and climate: Weather is short-term (day-to-day), climate is long-term (30+ years average). Do not use them interchangeably. In your exam answers, always clarify the difference clearly.
2. Writing only names of seasons without descriptions: Many students list the four seasons but do not describe the months, temperature conditions, or wind patterns. Always include months and key features for each season.
3. Mixing up vegetation types and their rainfall ranges: Remember — Tropical Rainforests: more than 200 cm, Deciduous Forests: 70-200 cm, Thorny Bushes: less than 70 cm. Confusing these ranges will cost you marks.
4. Confusing national parks with wildlife sanctuaries: National parks are strictly protected where no human activity is allowed. Wildlife sanctuaries allow some limited human activity. Do not treat them as the same thing.
5. Forgetting to mention examples: Always support your answers with examples. For instance, when writing about biosphere reserves, mention Nilgiri or Sundarbans. When writing about tropical rainforests, mention the Western Ghats or northeastern states.
6. Ignoring the difference between evergreen and deciduous forests: Evergreen (tropical rainforest) trees do not shed leaves seasonally; they remain green throughout the year. Deciduous trees shed their leaves in the dry season. This is a very commonly tested distinction.
Exam Checklist
Before your exam, make sure you can tick off every item on this checklist:
- [ ] I can clearly define and distinguish between weather and climate with examples.
- [ ] I can list all five elements of weather (temperature, humidity, rainfall, wind speed, air pressure).
- [ ] I can name and describe all four seasons of India with their months and key features.
- [ ] I can explain why the southwest monsoon is important for India's agriculture and economy.
- [ ] I can name all five types of vegetation in India with their rainfall requirements, tree examples, and regions.
- [ ] I can explain why vegetation varies across India (rainfall, temperature, soil, altitude, topography).
- [ ] I can define pneumatophores and identify which vegetation type they belong to (mangrove forests).
- [ ] I can list at least three steps taken to protect wildlife (national parks, wildlife sanctuaries, biosphere reserves, Project Tiger).
- [ ] I can name at least two endangered species and the national parks or reserves where they are protected.
- [ ] I can correctly answer fill-in-the-blank, true/false, and match-the-column questions on this chapter.
You are now fully prepared for Class 6 Social Science Geography Chapter 8 — India: Climate, Vegetation and Wildlife. Revise the key concepts, practise the MCQs, and review the common mistakes. Good luck with your exam!