Biochemical oxygen demand (BOD), is a measure of organic material present in water. A BOD value less than 5 ppm indicates the water sample to be:

Rich in dissolved oxygen

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Poor in dissolved oxygen

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Highly polluted

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Not suitable for aquatic life

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Solution

The correct option is A Rich in dissolved oxygen
Biochemical oxygen demand is the measure of organic material present in water. BOD value less than 5 ppm indicates a water sample to be rich in dissolved oxygen. Fresh water bodies have BOD value less than 5 ppm whereas in highly polluted water bodies, the BOD value is 17 ppm or above.

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Biochemical oxygen demand is a measure of organic material present in water. BOD value less than 5ppm indicates a water sample to be ___________.

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