The absence of ________ in the primitive atmosphere was essential to the origin of life on Earth. A)N₂ B)CO₂ C)CH₄ D)O₂

Name: The absence of ________ in the primitive atmosphere was essential to the origin of life on Earth. A)N 2 B)CO 2 C)CH 4 D)O 2
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The absence of O₂ (oxygen) in the primitive atmosphere was essential because oxygen is highly reactive and would have prevented the formation of complex organic molecules necessary for the origin of life.

The Absence of ________ in the Primitive Atmosphere Was Essential