[Solved] With respect to value of BOD, arrange the following in descending order. i) Distilled water ii) Tap water iii)Industrial effluent iv)Sewage discharge in the river

Q.	With respect to value of BOD, arrange the following in descending order. i) Distilled water ii) Tap water iii)Industrial effluent iv)Sewage discharge in the river
A.	i– ii – iii - iv
B.	iii –iv – ii - i
C.	iv –iii – ii - i
D.	ii – I – iv – iii
Answer» B. iii –iv – ii - i

818

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