MCQ Class 9 Science Exploration Chapter 13 Earth as a System: Energy, Matter, and Life

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1. What is the primary source of energy for life on Earth?

Question 1 of 20

2. Which sphere includes solid rocks and landforms?

Question 2 of 20

3. Which sphere contains all living organisms?

Question 3 of 20

4. Cryosphere refers to:

Question 4 of 20

5. What happens when one Earth sphere is disturbed?

Question 5 of 20

6. What causes fluctuations in the southwest monsoon?

Question 6 of 20

7. Solar radiation reaches Earth as:

Question 7 of 20

8. Speed of light in vacuum is:

Question 8 of 20

9. Which radiation is mostly absorbed by ozone layer?

Question 9 of 20

10. Visible light helps in:

Question 10 of 20

11. Greenhouse gases trap:

Question 11 of 20

12. Insolation means:

Question 12 of 20

13. Solar constant is about:

Question 13 of 20

14. Dark surfaces absorb:

Question 14 of 20

15. Albedo refers to:

Question 15 of 20

16. High albedo surfaces are:

Question 16 of 20

17. Which has highest albedo?

Question 17 of 20

18. Urban heat island effect makes cities:

Question 18 of 20

19. Equatorial regions are:

Question 19 of 20

20. Polar regions are cold because:

Question 20 of 20


 

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