Multiple choice

Life cannot originate from inorganic materials now because of

  1. low atmospheric temperature

  2. high degree of pollution

  3. high atmospheric oxygen

  4. absence of raw materials
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The early atmosphere was reducing (lacking oxygen), which allowed for the synthesis of organic molecules. The current oxidizing atmosphere, rich in oxygen, would immediately break down such molecules, preventing the spontaneous origin of life.

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