Water itself is one of the most abundant compounds in the universe. Earth is at the right distance from the sun, the right amount of greenhouse effect, and the right amount of pressure for water to be liquid on most parts of its surface.
because the moon does not contain enough gravity
I think that the earth does have a water supply since it has oxygen and gravity. On the moon I think it doesn't have oxygen or gravity. I'm not sure. This answer was just a guess.
Hydrosphere
could water exist as a liquid if we don't have a atmosphere
water, air and blood
Earth is the only planet with a bountiful supply of water.
because the moon does not contain enough gravity
I think that the earth does have a water supply since it has oxygen and gravity. On the moon I think it doesn't have oxygen or gravity. I'm not sure. This answer was just a guess.
Venus is closer to the sun, so it's hotter there. Water needs to stay below 100 deg C to remain a liquid, and Venus is hotter than that.
it is earth's water supply
just about 95% of the Earth is water
Hydrosphere
Earth is the only known planet with liquid water.
no
Earth.
earth
water cycle