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What do you mean by Biological Oxygen De...

What do you mean by Biological Oxygen Demand (BOD) ? 

A

Amount of oxygen required to clean polluted water.

B

Amount of oxygen required everyday by human beings.

C

Amount of oxygen required everyday by plants.

D

Amount of oxygen required by microorganisms for decomposition of biodegradable substances.

Text Solution

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The correct Answer is:
D
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