earthspacescience24 earthspacescience24

12-10-2020
Biology

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Why did the Earth not keep its first atmosphere?

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prettymami1424 prettymami1424

12-10-2020

Answer:

These molecules of gas moved so fast they escaped Earth's gravity and eventually all drifted off into space. Earth's original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed.

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