Give reasons : High BOD indicates intense level of microbial poll… - Vidyadip

Question

Give reasons : High BOD indicates intense level of microbial pollution.

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Answer

When BOD of a water sample is high, it denotes that the amount of dissolved oxygen in the water which is required by the microorganisms to decompose the organic matter in that water is high.
This shows that there are many microbes in the water body. Thus, high BOD indicates intense level of microbial pollution.

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