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BOD refers to:...

BOD refers to:

A

the oxygen required for bacteria to grow in 1 L 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 L of water

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