I can think of one way to make the oceans more
salty.Maybe you can think of more ways.
Water in the ocean evaporates and turns into a gas
or water vapor in clouds. The salt stays behind
in the ocean. Some of the clouds move over the
land and come down as rain, which runs into
rivers, which flow into the sea, and the whole
cycle starts again.
Maybe the oceans are
slowly getting a bit less salty, too. I don't
know. I'm sure they aren't getting a lot less
salty, or I would have read about it when I read
about oceans and climate change.Best wishes.
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