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What is meant by ozone shield? What is i...

What is meant by ozone shield? What is its significance? How is it affected by CFCs and ozone depleting substances?

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ICSE-ENVIRONMENTAL ISSUES-PRACTICE QUESTIONS (LONG ANSWER TYPE QUESTIONS)
  1. Discuss various causes of soil pollution and measures to control it.

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  2. What is the environmental significance of increasing Antarctica ozone ...

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  3. Discuss the methods of waste water treatment.

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  4. 'Air pollution can change the climate Discuss the statement .

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  5. What are environmental problems related to atomic reactors?

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  6. Account for the causes of smog, acid rain and greenhouse effect. How d...

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  7. How do the following affect land resources? (a) Deforestation (b) ...

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  8. What is meant by ozone shield? What is its significance? How is it aff...

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  9. What are algal blooms? How are they formed? Give two harmful effects o...

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  10. List any four factors which determine the amount of dissolved oxyge...

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  11. Environmental temperature is rising' Comment on the statement .

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  12. What is eutrophication? Explain its consequences on the life of plants...

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  13. Explain the three steps involved in the treatment of municipal waste w...

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  14. Some sources of pollutants and their effects are given. Using the info...

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  15. Explain the cause and effects of acid rains.

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  16. What is biological magnification ? Explain how DDT as a water polluta...

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  17. Two types to aquatic organisms in a lake show specific growth patterns...

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