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

Biochemical oxygen demand (BOD) in a river water

A

Gives a measure of Salmonella in the water

B

increase when sewage gets mixed with river water

C

Remains unchanged when algal bloom occurs

D

Has no relationship with concentration of oxygen in the water

Text Solution

Verified by Experts

The correct Answer is:
B
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