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Ecological balance of a mining area is r...

Ecological balance of a mining area is restored through

A

Conversion into agricultural area

B

Revegetation of area

C

Prevention of soil erosion

D

Protection against grazing

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Verified by Experts

The correct Answer is:
B
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JMD PUBLICATION-Environmental Issues-EXERCISE
  1. Air pollution is maximum due to

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  2. Air pollutant photochemical oxidants include

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  3. Ecological balance of a mining area is restored through

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  4. Nonionizing radiations with specific biological effects are

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  5. Domestic waste constitutes

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  6. Ozone layer of upper atmosphere is being destroyed by

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  7. Ozone depletion in stratosphere shall result in

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  8. Ultra-violet radiation from sunlight causes a reaction that produces

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  9. Effects of today's radioactive fallout will be more on future children...

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  10. Gas being produced by paddy fields amd involved in global warming is

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  11. Greenhouse effect causes warming due to

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  12. Greenhouse gases include

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  13. Fill in the blanks are a major cause for atmospheric pollution at ...

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  14. Fill in the blanks burns most efficiently unlike petrol or diesel.

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  15. Fill in the blanks % impurities make domestic sewage unfit for hum...

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  16. Fill in the blanks Presence of large amount of nutrients in water ca...

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  17. Fill in the blanks Eutrophication is the naturalof a lake by biologi...

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  18. Fill in the blanks Solid wastes refer to everything that goes out in...

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  19. Fill in the blanks are substitute for open burning dumps.

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  20. Fill in the blanks Chernobyl incident is an example of leakage.

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