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https://www.firstpost.com/tech/science/where-did-earths-oxygen-come-from-new-study-hints-at-an-unexpected-source-11725301.html
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Where did Earth's oxygen come from? New study hints at an unexpected source - Firstpost
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11/30/22 at 10:02am
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firstpost.com
The Archean Earth The Archean eon represents one third of our planet’s history, from 2.5 billion years ago to four billion years ago
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