How is common salt obtained from sea water
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"The sea water is first collected and it is keep for evaporation.when the water is fully evaporate the salt remain.by this way salt is obtained from sea water. sea water contains a large amount of common salt and the salt of other metal dissolved in it."
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The sea water is evaporated by the heat of the sun.
When a lot of water is evaporated,it forms a concentrated solution.
This solution is allowed to cool and the salt gets crystallized
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