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4 votes
How do scientists think that Earths oceans formed?

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User MmmHmm
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2 Answers

3 votes
Our scientists believe that just after the world was formed, it was very hot and dry. Theory also suggests that millions of water-rich comets and asteroids bombarded our planet around 3.8 billions years ago, explaining why oceans later appeared. 
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User Artjom
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1 vote
Craters hit the earth and rain came down.
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User Faysou
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