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Question

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
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B
5.00 micrometers
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C
10.00 micrometers
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D
7.5 micrometers
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Solution

The correct option is C 2.50 micrometers
  • Particulate matter causing air pollution is differentiated into settleable (larger than 10 ) and suspended (less than 10 ) particulate matter.
  • According to the Central Pollution Control Board, particles of 2.5 and lesser diameter are most harmful to human health as they can pass deep into the lungs causing breathing and respiratory problems.

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