Biology, 19.12.2020 05:50 quintinjerome

Which action characterized Earth's earliest atmosphere (atmosphere I) ? A.) Heat energy was retained and water vapor condensed.

B.) Helium and hydrogen gases escaped earth's gravity.

C.) Ultraviolet light split water vapor into hydrogen and oxygen.

D.) Increased oxygen allowed reptiles to thrive.

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Which action characterized Earth's earliest atmosphere (atmosphere I) ? A.) Heat energy was retained and water vapor condensed. B.) Helium and hydrogen gases escaped earth's gravity. C.) Ultraviolet light split water vapor into hydrogen and oxygen. D.) Increased oxygen allowed reptiles to thrive.

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