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The depletion of ozone layer occurs over...

The depletion of ozone layer occurs over Antarctica during spring time and it gets replenished after spring time. Explain.

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MODERN PUBLICATION-ENVIRONMENTAL POLLUTION -REVISION EXERCISES ( Short Answer Questions )
  1. Green chemistry involves

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  2. Depletion of ozone layer causes

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  3. The depletion of ozone layer occurs over Antarctica during spring time...

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  4. Why is acid rain considered a threat to Taj Mahal ?

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  5. Why does the rain water normally have a pH of about 5.6 ? When does it...

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  6. Give a brief account of chemical reactions occurring in atmosphere.

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  7. Write down the reactions involved during the formation of photochemica...

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  8. What are the harmful effects of photochemical smog and how can they be...

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  9. What are the reactions involved for ozone layer depletion in the strat...

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  10. What are pesticides and herbicides? Explain giving examples.

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  11. What do you mean by green chemistry? How will it help decrease environ...

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  12. What are the major causes of water pollution? Explain.

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  13. How do chemical industries cause environmental pollution ?

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  14. What pollutants are released by motor vehicles? How can we minimize da...

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  15. What do you understand by BOD and COD? How are these determined ?

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  16. What do you understand by (i) Polar stratospheric clouds (ii) Polar ...

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  17. Difine the environmental pollulant. What do you understand by an envir...

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  18. Briefly discuss acid rain and its harmful effects.

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  19. Why does green house effect cause global warming ? What could be the c...

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  20. Write a short note on Bhopal Gas tragedy?

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