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Q. 6

The conditions of the earth atmosphere conducive for the origin of life were:
A. Presence of high temperature, CH₄, NH₃, and O₃

B. High temperature, CH₄, NH₃, volcanic eruption

C. High temperature, volcanic eruption, O₂, NH₃

D. Volcanic eruption, CH₃, NH₃and O₂

Class 12th Biology - Exemplar Model Question Paper

Answer :

It was suggested by Heldane and Oparin, and experimentally proved by Urey and Miller that in the very starting atmosphere was reducing in nature.

It consisted of NH_3, H_2, CH_{4 ,}the temperature was very high.

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