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(B) The chemical theory of the origin of life,also known as the Oparin-Haldane hypothesis,suggests that life originated from non-living organic molecu

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Oparin and Haldane

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(B) The chemical theory of the origin of life,also known as the Oparin-Haldane hypothesis,suggests that life originated from non-living organic molecules through a series of chemical reactions in the primitive atmosphere.$A. I. Oparin$ (a Russian scientist) and $J. B. S. Haldane$ (a British scientist) independently proposed this theory in the $1920s$.They suggested that the early Earth's atmosphere was reducing and that simple organic compounds were synthesized from inorganic precursors under the influence of energy sources like lightning and ultraviolet radiation.

The chemical theory of the origin of life was proposed by:

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