. Biological Oxygen Demand (BOD) is a measure of


A: Industrial wastes poured into water bodies

B: Extent to which water is polluted with an organic compound

C: Amount of carbon monoxide inseparable combined with hemoglobin

D: Amount of oxygen needed by green plants during the night

Best Answer

Explanation- 

The amount of oxygen required per liter of water for five days is required by aerobic micro-organisms to metabolize organic compounds present in the water. It is comparatively lower.

So, BOD is a measure of the extent to which water is polluted with an organic compound.

Final Answer-

So, The correct option is B.

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