How water is purifide for supply in cities?

1.	How water is purifide for supply in cities?
Answer» Answer: now DAYS water is PURIFIED by a huge MACHINES by taking several STEP some like that water taken from sea we are do EVAPORATE and such other step

Answer»

Answer:

now DAYS water is PURIFIED by a huge MACHINES by taking several STEP some like that

water taken from sea we are do EVAPORATE

and such other step

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