Environmental Issues Class 12 MCQs Questions with Answers

1. DDT can cause

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

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

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

5. The greenhouse gases are

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

7. Acid Rain comes under which type of pollution?

8. Nutrient enrichment of water bodies causes:

9. The Chipko movement was launched for protection of_________

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

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

12. Which metal inactivates a catalytic converter?

13. BOD in river water_________

14. Act formulated in 1996 was:

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

16. Common indicator organism of water pollution is:

17. Global warming can be controlled by__________

18. Natural air pollutant are:

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

20. The powder of recycled modified plastic is called