Environmental Issues Class 12 MCQs Questions with Answers

1. Natural air pollutant are:

2. Act formulated in 1996 was:

3. The powder of recycled modified plastic is called

4. DDT can cause

5. The agents that bring undesirable changes in the environment arc called

6. The Chipko movement was launched for protection of_________

7.  In an area where DDT had been used extensively, the bird population declined significantly due to_________

8. The dB is a standard abbreviation used for the quantitative expression of:

9. Acid Rain comes under which type of pollution?

10. The greenhouse gases are

11. Common indicator organism of water pollution is:

12. BOD in river water_________

13.  A river with inflow of domestic sewage rich in organic waste may result__________

14. Presence of large amount of nutrients in water cause excessive growth of

15. Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of_________

16. Which metal inactivates a catalytic converter?

17. Rain is called acid rain, its pH is below:

18. Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with:

19. Nutrient enrichment of water bodies causes:

20. Global warming can be controlled by__________