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Biochemical oxygen demand (BOD) in a riv...

Biochemical oxygen demand (BOD) in a river water

A

Has no relationship with concentration of oxygen in the water

B

Gives a measure of Salmonella in the water.

C

Increases when sewage gets mixed with river water.

D

Remains unchanged when algal bloom occurs.

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The correct Answer is:
C
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AAKASH INSTITUTE-ENVIRONMENTAL ISSUES-ASSIGNMENT SECTION C
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  12. Which one of the following is no bioindicator of water pollution?

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