So I have always read/heard that Earth’s water never increases or decreases but didn’t it come from icy comets in the first place? Wouldn’t even the small ones that hit us all the time and burn up in the atmosphere still release evaporated water?
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It’s not *100%* constant, but the amounts added by asteroids (not comets; comets are pretty big and we would notice real quick if one hit us) or removed by the solar wind are so small as to be basically irrelevant compared to the amount of water on Earth.
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