Most likely from Comets from the Ort cloud (actually comets may have been prevalent throughout the Solar System early on then relegated to the Ort cloud by the solar wind) smashing into earth during its development. But you can't discount Volcanic action either. TommyTrouble
The hydrosphere encompasses all of Earth's water.
Yes water cycle use up earths supply. Water is evaporated from earth's surface.
Approximately 97% of Earth's water is saltwater found in oceans and seas.
the ocean
hydrosphere
it comes from mountains and the sky which is rain.
2 answers, comets, and volcanism.
Yes. Many of the Earths large rivers carry water from melting snow.
it is water cycle
water is from the earths core
Water on the earth
The hydrosphere encompasses all of Earth's water.
Yes water cycle use up earths supply. Water is evaporated from earth's surface.
three percent of all the earths water is fresh water
Salt Water
Plants
they come from earths atmosphere and gases