Why the ocean is salty? Over 70% of the surface of the Earth is covered by the enormous ocean. It is also well-known for having a salty flavor since the water contains dissolved salts. But from where does this salt originate ? The Erosion of Rock Rock erosion is one of the major sources of salt in the ocean. Water from rivers and rains picks up dissolved minerals from rocks and soil as it passes over the earth. Salts like magnesium, sodium, and chloride are among these minerals. These dissolved salts are then carried by the water as it flows into the ocean. Volcanic Activity Volcanic activity is another source of salt in the water. Minerals and salts that have been dissolved are released into the air and onto the ground when volcanoes erupt. These substances eventually find their way into streams and rivers before being transported to the ocean. Evaporation Evaporation increases the ocean's salinity as well. The dissolved salts are left behind when water evaporation occurs at the...
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