(B) $BOD$ stands for Biochemical Oxygen Demand. It is defined as the amount of oxygen that would be consumed if all the organic matter in $1000 \ mL$

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the amount of oxygen consumed if all the organic matter in $1000 \ mL$ of water were oxidised by bacteria.

(B) $BOD$ stands for Biochemical Oxygen Demand. It is defined as the amount of oxygen that would be consumed if all the organic matter in $1000 \ mL$ ($1$ litre) of water were oxidised by bacteria. It is a measure of the organic matter present in the water sample; higher $BOD$ indicates higher pollution levels.

Class 12 Biology Microbes in Human Welfare Microbes in Sewage Treatment

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$BOD$ refers to

KCET 2015 All KCET

A
the oxygen required for bacteria to grow in $1$ Litre of effluent
B
the amount of oxygen consumed if all the organic matter in $1000 \ mL$ of water were oxidised by bacteria.
C
the amount of oxygen released if all the organic matter in $1000 \ mL$ of water were oxidised by bacteria.
D
the amount of oxygen released when all the organic matter was consumed by bacteria in $1$ litre of water