if there is a question which is asked by a child 8 years, point blank, it could also leave you dry answers. Armed with curiosity, as always, I realized that I had not even me the basics in order to respond, and then, I am looking for explanations.
The explanation, in fact, has deep roots: with the passing of geological time, in fact, the rivers flowing into the oceans, carrying with them the minerals in the soil, and that, over time, has altered the original chemical composition. Of course, while the water of the river continues to deliver and deposit salts with which it was subtracted from the rocks in contact, these salts were going to increase even more in the sea.
The salt concentration in marine waters at the moment is about 35 grams per kilogram of water, a value that has remained virtually unchanged in the last billion years. However, salinity varies depending on the depth of the sea, rising to the surface, exactly where the greatest evaporation occurs. Where the amount of water sweet rivers has increased, the salinity is less sure.
The explanation, in fact, has deep roots: with the passing of geological time, in fact, the rivers flowing into the oceans, carrying with them the minerals in the soil, and that, over time, has altered the original chemical composition. Of course, while the water of the river continues to deliver and deposit salts with which it was subtracted from the rocks in contact, these salts were going to increase even more in the sea.
The salt concentration in marine waters at the moment is about 35 grams per kilogram of water, a value that has remained virtually unchanged in the last billion years. However, salinity varies depending on the depth of the sea, rising to the surface, exactly where the greatest evaporation occurs. Where the amount of water sweet rivers has increased, the salinity is less sure.
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