Question

why is rainwater considered as the purest form of water

Answer 1

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.

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Answer 2

here is your answer
rainwater is considered to be the purest form of natural water as it is directly comes from the condensation of water droplets in the presence of sun, the water evaporates from the Seas, oceans , rivers,(from all the natural open resources of water )leaving behind all the impurities and form the cloud .

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