Online MCQs – Environmental Chemistry-1 The Atmosphere – Chemistry 10th

Class 10th | Chemistry | Chapter 5 | Environmental Chemistry-1 The Atmosphere | Solved Online MCQs Test

Online MCQs Test of Chapter 5 (Environmental Chemistry-1 The Atmosphere) Chemistry Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus of Sindh Board

1. The waste or exhaust products produced by the burning of fossil fuels and organic materials are referred to as:

 
 
 
 

2. The lowest layer of Earth’s atmosphere is:

 
 
 
 

3. Weather in this layer affects our daily life.

 
 
 
 

4. Atmospheric pressure decreases with the

 
 
 
 

5. Which of the following is the reason of global warming?

 
 
 
 

6. Aeroplanes fly in:

 
 
 
 

7. The second most abundant element in the atmosphere is:

 
 
 
 

8. Troposphere altitudes varies from about:

 
 
 
 

9. The percentage of nitrogen is found in the atmosphere:

 
 
 
 

10. Which one of the following is a primary pollutant?

 
 
 
 

11. Second most abundant constituent of dry air in terms of volume after nitrogen is:

 
 
 
 

12. Which one of the following is a secondary pollutant?

 
 
 
 

13. The percentage of nitrogen is found in the atmosphere:

 
 
 
 

14. Which is not part of greenhouse gases?

 
 
 
 

15. Key contributor to the creation of acid rain is:

 
 
 
 

16. It is the second-lowest layer of Earth’s atmosphere.

 
 
 
 

17. Around 80% of the mass of the atmosphere is in the:

 
 
 
 

18. The altitude on stratosphere is:

 
 
 
 

19. Above the earth’s surface, ozone layer is found roughly:

 
 
 
 

20. Ozone layer is part of:

 
 
 
 


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