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4.0 Billion Years Ago
Description
Outgassing from crustal rocks gives Earth a secondary reducing atmosphere of methane, nitrogen, hydrogen, ammonia, and water vapour
Location
Earth
Rate
Quite important (7)
Sphere
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Milky Way
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Solar System
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Earth
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History of Solar System
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Evolution
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Precambrian
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Archean
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Eoarchean
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Atmosphere
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