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Although earth is estimated to be 4.5 billion years old, and although life first appeared about 4 billion years ago, plants did not appear until about _______ years ago.
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Although earth is estimated to be 4.5 billion years old, and although life first appeared about 4 billion years ago, plants did not appear until about _______ years ago.
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Sep 18, 2019
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Although earth is estimated to be 4.5 billion years old, and although life first appeared about 4 billion years ago, plants did not appear until about _______ years ago.
Biology
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Gsirianni
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470 million years ago
Grumbunks
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Sep 23, 2019
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Grumbunks
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