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Water impurities is substances which pollute water.
Water is being polluted by throwing waste in river and oil leakage by water transport.

Types of impurities

Soluble impurities-
Impurities which can be dissolved in water and can’t be easily separated from it.
Example – salt and other chemicals.

Insoluble impurities-
Impurities which can not be disolved in water and can easily separated from it.
Example – sand, mud etc..

Soluble impurities can be separated from water by
Evaporation – it is process of water turning into vapour.
Distillation – process of purifying water by heating and cooling.

Insoluble impurities can be separated by sendimantaion.

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