Our Environment

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Quiz Description: Our Environment (Class 7 Geography)

This quiz is based on the chapter Our Environment from Class 7 Geography. It consists of 30 multiple-choice questions (MCQs), each carrying 1 mark, for a total of 30 marks. The questions cover important concepts such as the definition of environment, its natural and human-made components, the four domains of the Earth, ecosystems, biodiversity, environmental degradation, and sustainable development.

The quiz is designed to:

Test students’ understanding of key terms and concepts.
Strengthen knowledge about the interaction between physical and biological environments.
Develop awareness about human impact on the environment and the need for conservation.

Marking Scheme:

Each correct answer = 1 mark
No negative marking

Total Marks: 30
Time Suggested: 30 minutes

This quiz will help students revise the chapter thoroughly and prepare effectively for exams.

Name

1. The term 'environment' comes from which language?

a) Greek

b) Latin

c) French

d) English

None

2. The word 'environer' means –

a) To live

b) To surround

c) To protect

d) To grow

None

3. The lithosphere is the –

a) Layer of air surrounding the Earth

b) Outer solid crust of the Earth

c) Water bodies of the Earth

d) Narrow zone of life

None

4. The word 'lithosphere' is derived from the Greek word 'lithos', which means –

a) Air

b) Water

c) Stones

d) Soil

None

5. About what percentage of the Earth’s surface is covered by water?

a) 71%

b) 50%

c) 29%

d) 97%

None

6. What fraction of Earth’s freshwater exists in solid form as ice sheets?

a) One quarter

b) One third

c) Three quarters

d) Half

None

7. Freshwater on land is made available through the –

a) Rainfall

b) Rivers

c) Oceans

d) Water cycle

None

8. The layer of air that surrounds the Earth is called –

a) Atmosphere

b) Hydrosphere

c) Lithosphere

d) Biospher

None

9. Which gas is present in the largest amount in the atmosphere?

a) Oxygen

b) Nitrogen

c) Carbon dioxide

d) Hydrogen

None

10. The amount of oxygen in the atmosphere is nearly –

a) 10%

b) 15%

c) 21%

d) 35%

None

11. The narrow zone where land, water, and air interact and life exists is called –

a) Ecosystem

b) Biosphere

c) Lithosphere

d) Hydrosphere

None

12. The great variety of life forms on Earth is called –

a) Ecology

b) Ecosystem

c) Environment

d) Biodiversity

None

13. The biotic environment includes –

a) Land and water

b) Rocks and minerals

c) Air and sunlight

d) Plants, animals, and microorganisms

None

14. The abiotic environment refers to –

a) Living things

b) Non-living things

c) Human activities

d) Food chain

None

15. Which of the following is NOT a domain of Earth?

a) Lithosphere

b) Hydrosphere

c) Stratosphere

d) Biosphere

None

16. The main source of energy for all life on Earth is –

a) Moon

b) Sun

c) Wind

d) Soil

None

17. The transfer of energy from one organism to another is called –

a) Food chain

b) Energy balance

c) Ecology

d) Water cycle

None

18. Which of the following is a small-scale ecosystem?

a) Forest

b) Ocean

c) Pond

d) Desert

None

19. An ecosystem can be –

a) Only natural

b) Only artificial

c) Natural or artificial

d) Only small in size

None

20. The early humans adapted to –

a) Artificial environment

b) Technology-based life

c) Natural surroundings

d) Industrial environment

None

21. Domestication of animals and growing of crops helped humans to –

a) Keep moving constantly

b) Lead a settled life

c) Hunt more animals

d) Create industries

None

22. Which of the following caused the growth of settlements in river valleys?

a) Cold climate

b) Desert area

c) Absence of animals

d) Fertile land and water availability

None

23. Which human activity is the main cause of deforestation?

a) Industrialisation

b) Road building

c) Agriculture expansion

d) All of the above

None

24. Increase in carbon dioxide in the atmosphere leads to –

a) Ozone layer depletion

b) Water cycle

c) Global warming

d) Earthquakes

None

25. The disturbance of ecological balance is called –

a) Environmental degradation

b) Sustainable development

c) Environment protection

d) Resource management

None

26. Which of the following is a natural hazard?

a) Earthquake

b) Release of chemicals

c) Pollution

d) Deforestation

None

27. Which of the following is a human-induced hazard?

a) Cyclones

b) Volcanic eruption

c) Drought

d) Pollution

None

28. The main objective of sustainable development is to –

a) Exploit nature more

b) Save environment for future generations

c) Increase industrialisation

d) Promote urbanisation

None

29. World Environment Day is celebrated every year on –

a) 1st May

b) 10th December

c) 15th August

d) 5th June

None

30. Which of the following is NOT a component of the human-made environment?

a) Roads

b) Buildings

c) Bridges

d) Rivers

None

1 out of 3

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Our Environment

Quiz Description: Our Environment (Class 7 Geography)

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