Chemistry, 04.01.2021 23:20, garay2015

Which action characterized Earth's earliest atmosphere (atmosphere I) ? Helium and hydrogen gases escaped earth's gravity.

Increased oxygen allowed reptiles to thrive.

Heat energy was retained and water vapor condensed.

Ultraviolet light split water vapor into hydrogen and oxygen

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Which action characterized Earth's earliest atmosphere (atmosphere I) ? Helium and hydrogen gases e...