If we collect all the salts in the ocean,its weight will be 120 million tonnes.if we spread it on the earth,it will form a 150m thick layer. From where have these salts come in the sea?
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Answer:
Salt in the ocean comes from rocks on land. 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 (which forms from carbon dioxide and water).
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Explanation:
It comes from rocks of land
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