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OpenStudy (anonymous):
Which gases made up most of Earth's early atmosphere? A. Ammonia and Methane B. Carbon Dioxide and Methane C. Carbon Dioxide and Ammonia D. Methane and Oxygen
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OpenStudy (shreehari499):
Hi! @Altaylor69 ! Carbon Dioxide and Ammonia made up most of Earth's early atmosphere.So its C..:)
OpenStudy (anonymous):
Thank you so much. :D @shreehari499
OpenStudy (shreehari499):
Anytime!
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