According to Central Pollution Control Board (CPCB), particu

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M: +2.00/-0.50

According to Central Pollution Control Board (CPCB), particulate size _______ micrometers or less in diameter are responsible for causing the greatest harm to human health.

[2017 SSC CGL 19 Aug Shift-2]

A 0.5

B 2.5

C 5

D 10