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Which of the option shows following exam...

Which of the option shows following examples in ascending order in terms of BOD? i) Distilled water ii) Tap water iii) Sewage wastes drained in river
(A) i- ii - iii
(B) ii- i- iii
(C) iii- i- ii
(D) iii- ii- i

A

i- ii - iii

B

ii- i- iii

C

iii- i- ii

D

iii- ii- i

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