11. _______ is a cold desert in India.
12. Dodo is
13. Blue whale is placed under
14. What is edge species?
15. The effects of radioactive pollutants depends upon
16. Ecology deals with the study of:
17. Light energy is transformed into chemical energy by
18. How do red and blue light differ?
19. Incineration of Municipal waste involves
20. The 3 R principle in waste management involves
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