What does high COD to BOD ratio of an organic pollutant represent ?

1.	What does high COD to BOD ratio of an organic pollutant represent ?
A.	High biodegradability of the pollutant
B.	Low biodegradability of the pollutant
C.	Presence of free oxygen for aerobic decomposition
D.	Presence of toxic material in the pollutants
Answer» B. Low biodegradability of the pollutant

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What does high COD to BOD ratio of an organic pollutant represent ?

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