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Biochemical oxygen demand (BOD) is defin...

Biochemical oxygen demand (BOD) is defined as ............ in ppm of `O_2`.

A

for the photochemical breakdown of waste present in 1 `m^(3)` volume of a water body .

B

for sustaining life in a water body . By anaerobic bacteria to breakdown

C

inorganic waste present in a water body.

D

waste in a certain volume of a water sample

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