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Biochemical Oxygen Demand (BOD) is a mea...

Biochemical Oxygen Demand (BOD) is a measure of:

A

industrial wastes poured into water bodies

B

extent to which water is polluted with organic compounds

C

amount of carbon monoxide inseparably combined with haemoglobin

D

amount of oxygen needed by green plants during night

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The correct Answer is:
B
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