Question

How does rain water get impure ?​

Answer 1

Hi buddy

Here is your answer

Rain water is considered the purest form of water. Impurities and salts present in water on earth are left behind during vaporisation by the sun. However, the rain water we receive on earth is not necessarily pure, as it brings down impurities and particles present in the atmosphere along with it.

Answer 2

Because the pollution and dust particles in atmosphere which mix with water vapour and the rain water become impure.