Notice that in the city waterworks slouble impurities are not removed from water why do you think is not necessary?

Answer 1

This is not nessesory because most of the soluble impurities are minarals and minerals are healthy for our body.This why the city waterworks allow the soluble impurities

Answer 2

Some soluble impurities in water may not be harmful or may be present in very low concentrations that do not pose a health risk. Removing all soluble impurities would require more complex and expensive treatment processes, which may not be necessary if the water meets regulatory standards for safe drinking water. Additionally, some soluble impurities may even contribute to the taste and mineral content of the water.