Science, asked by sahityajyothi, 23 days ago

Which one of the following is step in a wastewater treatment?
filtration
aeration
chlorination
All of the above​

Answers

Answered by bitapisarma
7

Answer:

all the above

Explanation:

hope this answer was helpful

Answered by Dreamer2360
0

Answer:

ALL OF THE ABOVE

Explanation:

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