If it were, you'd be swimming right now. Earth is part water, part land. About 60 to 70% water, and the rest land.
earth
Earth.
Earth
Earth..?
Earth
The question seems poorly worded, but Earth is the planet with liquid water on its surface.
It's the Earth.
Earth, because it is the only planet with liquid water.
Earth
Water does exist on Earth. Earth is the only planet known to have liquid water.
Earth is the only planet known to have life and liquid water.
earth