If salt is constantly being added to ocean water, one might wonder why the salt level stays the same.
Why doesn't the ocean get saltier as more salt is released into seawater over the years?
Scientists have determined that the level of the ocean's salinity, or amount of salt in the water, has stayed the same for millions or perhaps even a billion years.
They have observed that approximately the same amount of salt that rivers and hydrothermal process put into the ocean water is constantly being removed from the water.