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It is now clear from measurements of the D/H ratio and Ar content of comets that no more than 15% of the Earth’s water can have been added to the Earth at the end of accretion.
A. Well there have been a few theories about the origin of earths water. The most recent theory is that colliding comets that would have broken up on impact with the earths surface dumped it. To ...
Most scientists would agree that water on Earth, so vital for the development of life, came from comets and asteroids, rife with ice, slamming into the planet as it formed.
The impact blasted the Earth's atmosphere into space, boiled off any water and turned our planet's surface into a sea of molten rock.
- - Where did Earth's water come from? (http://hypography.com/forums/earth-science/8063-where-did-earth-s-water-come.html)
Water for the rock; did Earths oceans come from the heavens? - research into the origin of the Earths seas from Science News in Reference provided free by Find Articles.
Science question: Where does new water on earth come from? It all just keeps getting reused over and over, evaporation, rain, mountains, all sorts of stuff that nature has. So we never actually lose or ...
"Where did all the water on earth come from?" - Find the answer to this question and millions more on Yahoo! UK & Ireland Answers.
Some have suggested that when God made the dry land appear from under the waters on the third day of creation, some of the water that covered the earth became trapped underneath and within the dry land.2 ...
Discusion about Where did Earth's water come from? in the AboveTopSecret.com website alternative topics discussion forum Space Exploration.
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