What do BOD and COD stand for?(a) Biological Oxygen Demand and Chemical Oxygen Demand respectively(b) Chemical Oxygen Demand and Biological Oxygen Demand respectively(c) Botanical Oxygen Demand and Chemical Oxygen Demand respectively(d) Basic Oxygen Demand and Chemical Oxygen Demand respectivelyThis question was posed to me during an interview.The question is from Environmental Issues in section Environmental Issues of Biology – Class 12

What do BOD and COD stand for?(a) Biological Oxygen Demand and Chemica

1.	What do BOD and COD stand for?(a) Biological Oxygen Demand and Chemical Oxygen Demand respectively(b) Chemical Oxygen Demand and Biological Oxygen Demand respectively(c) Botanical Oxygen Demand and Chemical Oxygen Demand respectively(d) Basic Oxygen Demand and Chemical Oxygen Demand respectivelyThis question was posed to me during an interview.The question is from Environmental Issues in section Environmental Issues of Biology – Class 12
Answer» The correct answer is (a) BIOLOGICAL Oxygen DEMAND and Chemical Oxygen Demand RESPECTIVELY Easiest explanation: The BOD and COD STAND for the Biological Oxygen Demand and Chemical Oxygen Demand respectively. BOD is the dissolved oxygen is utilized by microbes in decomposing the organic WASTES of water while COD is the measure of the amount of oxygen necessary to oxidize all the pollutants present in water.

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