A) \[S<DE<PE<SE~\]
B) \[SE<S<PE<DE\]
C) \[SE<PE<S<DE\]
D) \[PE<S<SE<DE\]
Correct Answer: B
Solution :
BOD of distillery effluent is 40,000 mg/l and that of paper mill effluent and sewage is 190 mg/l and 30 mg/l, respectively.
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