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Question

Biological Oxygen Demand (BOD) of sewage water is related to

A
Presence of detergents
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B
Presence of fertilizers
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C
Presence of inorganic pollutants
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D
Presence of organic pollutants
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Solution

The correct option is D Presence of organic pollutants
Biological oxygen demand is the amount of dissolved oxygen available for the organisms to breakdown the organic pollutants. Hence, the correct option is D.

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