Multiple choice

Abiogenesis occurred how many years ago?

  1. 1.2 billion

  2. 1.5 billion

  3. 2.5 billion

  4. 3.5 billion

  5. -
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

As per the theory of abiogenesis, abiogenesis occurred 3.5 billion years ago. It is a scientific theory which states that life arose on Earth via spontaneous natural means due to conditions present at the time.

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