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Which of the following is the test to the determine amount of oxygen needed to oxidize all pollution materials?

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in Biology – Class 12 by (271k points)
Which of the following is the test to the determine amount of oxygen needed to oxidize all pollution materials?

(a) Biological Oxygen Demand

(b) Chemical Oxygen Demand

(c) Botanical Oxygen Demand

(d) Physical Oxygen Demand

This question was posed to me in final exam.

My query is from Environmental Issues in section Environmental Issues of Biology – Class 12

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Correct answer is (b) Chemical Oxygen Demand

Easy explanation: Chemical Oxygen Demand (COD) is the measure of the amount of oxygen necessary to oxidize all the pollutants present in water. The value of the chemical oxygen demand is much higher as compared to the biological oxygen demand.

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