Question

Give reason:- Ocean water is salty.
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Answer 1

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. ... Sodium and chloride, the main constituents of the type of salt used in cooking, make up over 90% of all the ions found in seawater.

Rivers discharge mineral-rich water to the oceans. Satellite view of La Plata River discharge to the Atlantic Ocean. One way minerals and salts are deposited into the oceans is from outflow from rivers, which drain the landscape, thus causing the oceans to be salty.

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Answer 2

Answer: Ocean water is salty because of several natural processes out of which the most efficient is rainwater. Rain reacts with carbon dioxide (CO2) present in the atmosphere and forms carbonic acidic, which is slightly acidic and reacts with minerals present in the rocks which help in forming new minerals and salts that get mixed with the ocean water, thus making it salty.