Primary treatment is the
1) physical removal of large and small particles from sewage 2) biological removal of large and small particles
form sewage
3) both (1) and (2)
4) chemical removal of large and small particles from sewage
Answers
Answered by
1
Answer:
3)both (1) and (2)
Explanation:
Hope it will help you.
Answered by
0
Explanation:
your answer is 3both (1)and(2)
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