When was the earth supposed to have been formed and when did life appear on the earth?
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4.54 billion years ago earth formed and first life appeared about 3.77
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Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen
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