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Environmental Issues
In which one of the following the BOD (Biochemical Oxygen Demand ) of sewage (s), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) have been arranged in ascending order?
SE < S < PE < DE
SE < PE < S < DE
PE < S < SE < DE
S < DE < PE < SE
D.
S < DE < PE < SE
The ascending order of BOD is sugar mill effulent> paper mill effulent> Distillery effluent> Sewage.
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