Q.
What does high Biochemical Oxygen Demand in a water body indicate?
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a
The pollution in the water is very less.
b
The water is pure and lacks any organic matter.
c
The water is highly polluted.
d
The water in the water body is fit for drinking.
answer is C.
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Detailed Solution
Biochemical oxygen demand (BOD) represents the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic (oxygen is present) conditions at a specified temperature. Higher the BOD greater the pollution in the water body.
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