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

1. The earth is surrounded by a layer of gases called the:

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

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

4. Aeroplanes fly in:

5. Weather balloons go as high as the:

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

7. With respect to earth surface, the earth’s atmospheric layers are classified on the bases of:

8. Which is not part of greenhouse gases?

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

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

11. Ozone layer is part of:

12. It is a method used in electro-analytical chemistry to find the concentration of solute in solution.

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

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

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

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

17. Atmospheric pressure decreases with the

18. Troposphere altitudes varies from about:

19. It is a major contributor to ozone depletion.

20. Second highest layer of Earth’s atmosphere is: