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According to the Central Pollution Contr...

According to the Central Pollution Control Board, particles that are responsible for causing great harm to human health are of diameter.

A

2 . 50 micrometers

B

5 micrometers

C

10 micrometers

D

7.5 micrometers

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The correct Answer is:
A
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AAKASH SERIES-ENVIRONMENTAL ISSUES-Exercise-I (Air pollution)
  1. The most effective device to remove particulate matter from polluted ...

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  2. Use of CNG instead of diesel reduces air pollution because

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  3. Observe the following device. It is used to control

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  4. According to the Central Pollution Control Board, particles that are r...

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  5. Compressed natural Gas (CNG) is

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  6. Among the following which one causes more indoor chemical pollution

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  7. Catalytic converters are fitted into automobiles to reduce emission o...

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  8. Why is necessary to remove sulphur from petroleum products

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  9. Montreal protocol which calls for appropriate action to protect the oz...

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  10. In 1984, Bhopal gas tragedy took place because methyl isocyanate

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  11. The city in which the entire public road transport runs on CNG

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  12. A major component of Gobar gas is

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  13. The loudness of a sound that a person can withstand without discomfor...

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  14. The major source of noise pollution, worldwide is due to

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  15. the intensity of noise beyond which it causes physical discomfort

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  16. The quietest sound that the ear of a man can detect is known as

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  17. What was added in 1987 as a pollutant to air (Prevention and Control o...

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  18. Sound becomes a hazardous noise pollution if its level is above

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  19. The first effect of noise is

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  20. The material generally used for sound proofing of rooms like a recordi...

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