The Earth is believed to have been formed approximately how many years ago?
- A$2.5$ million
- B$4.5$ million
- C$2.5$ billion
- D$4.5$ billion
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$I.$ Oparin's theory of the origin of life is based on $....A......$
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$II.$ The chemical theory of the origin of life was given by $....B......$
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View SolutionWhich of the following were present in the prebiotic soup?
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