Question

How do we know that the water is pure or impure??

Answer 1

ya we can check if the water is pure or not by testing whether there is choloform or not..that a kind of bacteria which is present in contaminated water

Answer 2

HEY MY FRIEND U R ANSWER IS HERE

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Rain water is the purest substance of all but it doesn't conclude that all are equally pure ... a polluted is less pure than pure water

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A simple home method

◆ See the glass filled of water if u see some dust particle it is not pure

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HOPE U UNDERSTAND☺☺☺