Environmental Sciences, asked by khanxk, 1 month ago

Which one is the incorrect pair Option 1: Trickling filter-Primary treatment Option 2: Sedimentation-Primary treatment Option 3: Grit removal. Preliminary Treatment Option 4: Chlorination-Tertiary Treatment

Answers

Answered by rd737555

0

Answer:

ysusisi sjsj

Explanation:

jKsisos sksoso sjsisis

Answered by shikshsha60

0

Answer:

I don't know, I need points.

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