Astrophile
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- Aug 30, 2013
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As I understand it, sea water contains almost every element found on the Periodic Table.
Seawater contains a lot more chlorine (1.94%) than either silicon, which forms 27.7% of the Earth's crust, or iron, which forms about 30% of the total mass of the Earth. Also you are ignoring the fact that the mass of the solid Earth is more than 4000 times that of all the oceans, seas, rivers, lakes, and glaciers and ice caps put together.
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