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Science and Technology - General Knowledge Questions
Evidence suggests that life on Earth has existed for about
A)
3.5 million years
B)
35 million years
C)
3.5 billion years
D)
35 billion years

Correct Answer :   3.5 billion years

Evidence suggests that life on Earth has existed for about 3.5 billion years. The earliest known fossils on Earth date from 3.5 billion years ago and there is evidence that biological activity took place even earlier - just at the end of the period of late heavy bombardment.

Published On : June 9, 2021
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