Q: 1. Define the environment. What are its major components?

Environment refers to everything that surrounds us, including living and non-living things . It has three major components : (I) Natural Environment (air, water, land, plants, and animals). (II) Human-made environment (buildings, roads, bridges, industries). (III) Human Environment (interaction between people and nature, such as agriculture, trade, and communication).

Q: 2. What is the difference between the natural and human-made environment?

Natural Environment : Includes elements like rivers, forests, mountains, and wildlife , which exist naturally. Human-Made Environment : Includes things like buildings, bridges, roads, and parks , which are created by humans.

Q: 3. Why is the biosphere important for life on Earth?

The biosphere is the part of the Earth where life exists . It provides the essential conditions for survival , such as oxygen, food, and water . Without the biosphere, living organisms would not be able to survive .

Q: 4. Explain the four major components of the natural environment with examples.

The natural environment is divided into four components: ✅ Lithosphere (Land) The solid outer layer of the Earth. Includes mountains, plains, plateaus, and valleys. Provides soil, minerals, and natural resources. Example : The Himalayas, Thar Desert, and Deccan Plateau. ✅ Hydrosphere (Water) Covers 71% of the Earth's surface. Includes oceans, rivers, lakes, and glaciers. Essential for drinking, irrigation, and electricity generation. Example: The Ganga River, Arabian Sea, Pacific Ocean. ✅ Atmosphere (Air) A layer of gases that surrounds the Earth. Contains 78% nitrogen, 21% oxygen, and 1% other gases. Protects from harmful UV rays and maintains temperature. Example: The Ozone layer protects us from UV rays. ✅ Biosphere (Life) The zone where life exists. Includes plants, animals, and humans. Interaction between lithosphere, hydrosphere, and atmosphere creates favorable conditions for life. Examples: Forests, grasslands, and coral reefs.

Q: 5. What steps can we take to protect the environment and promote sustainable development?

Sustainable development means using resources wisely so that they last for future generations. Ways to protect the environment : ✅ Reduce plastic use and promote recycling. ✅ Use solar and wind energy instead of fossil fuels. ✅ Conserve water by reducing wastage. ✅ Plant more trees to prevent deforestation. ✅ Spread awareness about environmental conservation.

Question 1

1. Define the environment. What are its major components?

Accepted Answer

Environment refers to everything that surrounds us, including living and non-living things.
It has three major components:
(I) Natural Environment (air, water, land, plants, and animals).
(II) Human-made environment (buildings, roads, bridges, industries).
(III) Human Environment (interaction between people and nature, such as agriculture, trade, and communication).

Question 2

2. What is the difference between the natural and human-made environment?

Accepted Answer

Natural Environment: Includes elements like rivers, forests, mountains, and wildlife, which exist naturally.
Human-Made Environment: Includes things like buildings, bridges, roads, and parks, which are created by humans.

Question 3

3. Why is the biosphere important for life on Earth?

Accepted Answer

The biosphere is the part of the Earth where life exists.
It provides the essential conditions for survival, such as oxygen, food, and water.
Without the biosphere, living organisms would not be able to survive.

Question 4

4. Explain the four major components of the natural environment with examples.

Accepted Answer

The natural environment is divided into four components:
✅ Lithosphere (Land)
The solid outer layer of the Earth.
Includes mountains, plains, plateaus, and valleys.
Provides soil, minerals, and natural resources.
Example: The Himalayas, Thar Desert, and Deccan Plateau.
✅ Hydrosphere (Water)
Covers 71% of the Earth's surface.
Includes oceans, rivers, lakes, and glaciers.
Essential for drinking, irrigation, and electricity generation.
Example: The Ganga River, Arabian Sea, Pacific Ocean.
✅ Atmosphere (Air)
A layer of gases that surrounds the Earth.
Contains 78% nitrogen, 21% oxygen, and 1% other gases.
Protects from harmful UV rays and maintains temperature.
Example: The Ozone layer protects us from UV rays.
✅ Biosphere (Life)
The zone where life exists.
Includes plants, animals, and humans.
Interaction between lithosphere, hydrosphere, and atmosphere creates favorable conditions for life.
Examples: Forests, grasslands, and coral reefs.

Question 5

5. What steps can we take to protect the environment and promote sustainable development?

Accepted Answer

Sustainable development means using resources wisely so that they last for future generations.
Ways to protect the environment:
✅ Reduce plastic use and promote recycling.
✅ Use solar and wind energy instead of fossil fuels.
✅ Conserve water by reducing wastage.
✅ Plant more trees to prevent deforestation.
✅ Spread awareness about environmental conservation.

Class 7 Geography – Chapter 1: Environment Best Notes

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