Why aren’t rivers/estuaries/lakes etc salty like the sea ?
In: Planetary Science
The salt in the ocean came from those rivers.
The river flows, and dissolves salts from the rocks they flow over. That water and salt gets dumped into the ocean.
Water evaporates from the ocean and rains back down on land, leaving the salt behind in the ocean. This process repeats over and over again, but there is never salt being returned to the rivers, so the rivers never accumulate salt, so it all sits in the oceans
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