gmatexam439 wrote:
Still not convinced with the answer. Bacteria are living organisms that definitely indicate the past/present of the living species.
Geologist's Argument:Their (scientists') theory is refuted by the presence in petroleum of biomarkers, molecules indicating the past or present existence of a living organism.
Scientists' theory is refuted. So, what is scientists' theory? Scientists' theory is that petroleum is formed from deep carbon deposits. So if scientists' theory is refuted, it becomes that
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