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Title: Microfossil evidence suggests that life Post by: adreamer on Sep 9, 2017 Microfossil evidence suggests that life
A) originated when the Earth formed 4.6 billion years ago B) originated about 3.4 billion years ago C) existed 3.85 billion years ago D) existed and was well established by 3.4 to 3.5 billion years ago Title: Re: Microfossil evidence suggests that life Post by: 19Clyde on Sep 9, 2017 Content hidden
Title: Re: Microfossil evidence suggests that life Post by: adreamer on Dec 30, 2017 Thanks!
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