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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
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∙ 17y ago
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What percent of earths water is saltwater?
About 97% of Earths water is saltwater.
Which of earths sphere encompasses all of earths water?
The hydrosphere encompasses all of Earth's water.
Does the water cycle use up earths water supply?
Yes water cycle use up earths supply. Water is evaporated from earth's surface.
What ocean makes up twenty percent of the earths water surface?
Indian Ocean covers 20% of water on the earths surface.
Where is most of the earths water?
the ocean
Where does earths usable water come from?
it comes from mountains and the sky which is rain.
Where did water in earths early oceans come from?
2 answers, comets, and volcanism.
Does water come from snow?
Yes. Many of the Earths large rivers carry water from melting snow.
What percent of earths water is saltwater?
About 97% of Earths water is saltwater.
Were is earths water located?
The earths water is located everywhere as water, ice or even gas. Such as water vapour in the air.
What Continuous movement of water from Earths surface to the and back to earths surface?
it is water cycle
Where is water from?
water is from the earths core
What is the earths water?
Water on the earth
Which of earths sphere encompasses all of earths water?
The hydrosphere encompasses all of Earth's water.
Does the water cycle use up earths water supply?
Yes water cycle use up earths supply. Water is evaporated from earth's surface.
What percentage of earths water is fresh water available for use by living organisms?
three percent of all the earths water is fresh water
What water is most of earths water?
Salt Water
