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Biochemical Oxygen Demand (BOD) in a riv...

Biochemical Oxygen Demand (BOD) in a river water

A

Remain unchanged when algal bloom occur

B

Increases when sewage gets mixed with river water

C

Give number of Salmonella in water

D

Has no relationship with organic matter present in river water

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Verified by Experts

The correct Answer is:
B
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