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

ABiological Oxygen Demand

BChemical Oxygen Demand

CBotanical Oxygen Demand

DPhysical Oxygen Demand

Answer:

B. Chemical Oxygen Demand

Read 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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