why is the sea water salty
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Salt in the sea, or ocean salinity, is mainly caused by rain washing mineral ions from the land into water. Carbon dioxide in the air dissolves into rainwater, making it slightly acidic. When rain falls, it weathers rocks, releasing mineral salts that separate into ions.
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The salt in the sea, or the salinity, is mainly caused by rain washing mineral ions from the land into water. Carbon-dioxide in the air dissolves into rainwater, make it slightly acidic..... Isolated bodies of water can become extra salty, or hypersaline through evaporation. Dead sea is an example of this.
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