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Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks.
7 Ιουν 2022 · Salt in the ocean mainly comes from two sources: This means that rain transports mineral ions from land into water. Rainwater is slightly acidic, as some carbon dioxide in the air dissolves in it. When rain falls on rocks, mineral salts are released, which separate into ions.
23 Μαΐ 2019 · Salt in the ocean comes from rocks on land. Here's how it works... The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid.
11 Ιουν 2018 · Water that is saline contains significant amounts (referred to as "concentrations") of dissolved salts, the most common being the salt we all know so well—sodium chloride (NaCl). In this case, the concentration is the amount (by weight) of salt in water, as expressed in "parts per million" (ppm).
When freshwater flows into the ocean, it carries salts and minerals with it. More salts and minerals are added from seafloor vents. Deep in the ocean, water seeps into cracks in the Earth’s crust. There, it’s heated by magma. Hot water dissolves salts and minerals from the rock. (This is similar to dissolving table salt or sugar in water.
A defining characteristic of ocean water is its high concentration of dissolved salts, or salinity. The resources on this page explore the nature of salt, the relationship between salt and water, and salt's effect on ocean chemistry.
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.
