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28 July, 21:53

The atmosphere was filled with poisonous gases during the:

Hadean Eon

Archean Eon

Protozoic Eon

Phanerozoic Eon

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  1. 28 July, 22:04
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    The correct answer for the question that is being presented above is this one: "Archean Eon." The atmosphere was filled with poisonous gases during the Archean Eon. During the Archean Eon, it was likely a reducing atmosphere of methane, ammonia, and other gases which would be toxic to most life on our planet today.
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