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Earth's first semi-permanent atmosphere consisted of abundant water vapor, carbon dioxide, nitrogen, ammonia, and traces of methane. these gases came from

Earth's first semi-permanent atmosphere consisted of abundant water vapor, carbon dioxide, nitrogen, ammonia, and traces of methane. these gases came from
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Earth's first semi-permanent atmosphere consisted of abundant water vapor, carbon dioxide, nitrogen, ammonia, and traces of methane. these gases came from

User Chris Hawkes
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organic compounds from the Cambrian era
User Shaheen Zahedi
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