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It is known as desalination. The simplest method is thermal: boil the saline water, capture the steam and condense it back into water, leaving the salt behind. Another method is electrical: pass an electric current through the saline water. The current drives ions across a selectively permeable membrane, carrying the dissociated salt ions with it. Another method is reverse osmosis using pressure: Pressure is used to drive water through a membrane, leaving the salt behind.

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What removes salt from ocean water?

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The process of removing salt from sea water?

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desalination is for the process of removing salt from sea water.


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When water evaporates from the ocean, the salt remains behind. This process leaves the salt concentration in the ocean water higher than before evaporation.


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You could increase the salinity of the ocean by adding salt or removing water (ie: by evaporation).


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