Most plants only need carbon dioxide so they only need humans
I’m confused- what’s the question
6.72 m/s2 would be the answer.
Your Question: How did water come to earth?
Your answer: As a standard comet nears the heat of the Sun, the ice particles from its nucleus sublimate or go directly from solid ice to a gas, which can then condense later into liquid water if it were, say, to arrive on a planet's surface.
Hope this helped! :)
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