MCQ Chapter 3 Atmosphere and Climate Class 9 Social Science CBSE Board

Advertisement

1. What is the blanket of air surrounding the Earth called?

Question 1 of 20

2. What keeps the Earth's atmosphere surrounding the planet?

Question 2 of 20

3. Which two gases are the most abundant in the Earth's atmosphere?

Question 3 of 20

4. Which gas makes up about 78% of the Earth's atmosphere?

Question 4 of 20

5. Approximately what percentage of the Earth's atmosphere is oxygen?

Question 5 of 20

6. Which gas is present in the atmosphere in a concentration of about 0.04%?

Question 6 of 20

7. Water vapour in the atmosphere mainly helps in:

Question 7 of 20

8. The amount of water vapour in the atmosphere generally ranges between:

Question 8 of 20

9. The atmospheric layers are mainly classified on the basis of changes in:

Question 9 of 20

10. Where is the density of air the highest?

Question 10 of 20

11. Which is the lowest layer of the atmosphere?

Question 11 of 20

12. The average height of the troposphere is about:

Question 12 of 20

13. Nearly all weather phenomena occur in which atmospheric layer?

Question 13 of 20

14. What is the boundary between the troposphere and the stratosphere called?

Question 14 of 20

15. Which atmospheric layer is considered ideal for flying aeroplanes?

Question 15 of 20

16. Which atmospheric layer contains the ozone layer?

Question 16 of 20

17. The ozone layer protects the Earth by absorbing:

Question 17 of 20

18. Most meteorites entering the Earth's atmosphere burn up in the:

Question 18 of 20

19. In which atmospheric layer does temperature increase rapidly with altitude because gases absorb X-rays and short-wave ultraviolet radiation?

Question 19 of 20

20. Which is the uppermost layer of the Earth's atmosphere?

Question 20 of 20


 

MCQ
Quiz

Leave a Reply

Your email address will not be published. Required fields are marked *

Advertisement

CBSE Board English Medium

CBSE Board Hindi Medium

बिहार बोर्ड

उत्तर प्रदेश बोर्ड

महाराष्ट्र बोर्ड

मध्य प्रदेश बोर्ड

ગુજરાત બોર્ડ

PSC Exam Preparation

Install App

Install our app for the best experience!