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Q.
B.O.D. stands for
UP CPMTUP CPMT 2000
Solution:
B.O.D. (Biological Oxygen Demand) is the amount of dissolved $O_{2}$ (in $mg/dm^3$ water) which disappears from a water sample in a given time at a certain temperature, through decomposition of organic mater by micro-organisms. It is used as an index of organic pollution.