Life took approximately 500 million (5x108) years to appear after the formation of the earth. Thus life is thought to be evolved almost 4 billion (4x109) years back from now, as the earth was formed 4.5 billion (4.5x109) years ago.
After about how many years of formation of earth, life appeared on this planet?
NEET UG 2020 — Zoology Evolution
2020mcqeasy
After about how many years of formation of earth, life appeared on this planet?
Official previous-year question
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Options
- A
500 billion years
- B
50 million years
- C
500 million years
- D
50 billion years
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