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  • Biochemical oxygen Demand(BOD) is the amount of oxygen required (in ppm):Option: 1 For the photochemical breakdown of waste present in

Biochemical oxygen Demand(BOD) is the amount of oxygen required (in ppm):

Option: 1

For the photochemical breakdown of waste present in 1 \; m^{3} volume of a water body


Option: 2

by anaerobic bacteria to breakdown inorganic waste present in a water body.


Option: 3

by bacteria to break-down organic waste in a certain volume of a water sample


Option: 4

for sustaining life in a water body


Answers (1)

best_answer

The amount of oxygen required by bacteria to break down the organic matter present in a certain volume of a sample of water is called Biochemical Oxygen Demand (BOD).

Hence, the option number (3) is correct.

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