According to the Oparin-Haldane hypothesis, ____ was likely absent or near absent in Earth's early atmosphere. A) O₂(oxygen) B) H₂(hydrogen) C) CH₄(methane) D) H₂O (in vapor form) E) NH₃(ammonia)

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The Oparin-Haldane hypothesis suggests that Earth's early atmosphere was reducing, lacking or nearly lacking in oxygen, which allowed for the formation of organic compounds necessary for the development of life.

According to the Oparin-Haldane Hypothesis, ____ Was Likely Absent or near Absent