What gas important to life was abscent from earths earliest atmosphere?

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asked Jan 3, 2017 163k views

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Shyam Bhagat · Answer 1 · 2017-01-05T19:42:34+0000

The water vapor, carbon dioxide, and methane acted as greenhouse gases, trapping heat and insulating the early Earth during a critical period in its development. Of oxygen, meanwhile, the early atmosphere held barely a trace.

What gas important to life was abscent from earths earliest atmosphere?

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