Question

After about how many years of formation of Earth, life appeared on this planet?

• A. 500 billion years
• B. 50 million years
• C. 500 million years
• D. 50 billion years

Answer 1

The correct option is C 500 million years

Earth was formed approximately 4.5 billion years ago.

Life appeared 500 million years after the formation of earth, i.e., almost four billion years back approximately.