Question

High biological oxygen demand in a water body means ……….

Answer 1

Answer:

Biochemical Oxygen Demand (B.O.D.) is a measure of the quantity of oxygen used by microorganisms in the oxidation of organic matter. If the B.O.D. is high, that means that microorganisms are using most of the Oxygen. This situation makes it difficult for larger aquatic animals to survive.

Explanation:

Answer 2

Answer:

Here is your answer mate

Higher BOD indicates more oxygen is required, signifying lower water quality. Low BOD means less oxygen is being removed from the water, so the water is usually purer.

Explanation:

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