Earth formed around 4.6 billion years ago, and the earliest traces of life are thought to have appeared approximately 500-600 million years later, suggesting a period of Earth's formation and cooling before life began to emerge.

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Earth Formed

Question 46

Multiple Choice

Earth formed

A) 4.6 billion years ago, and the earliest traces of life appear immediately thereafter.
B) 4 billion years ago, and the earliest traces of life appear immediately thereafter.
C) 4.6 billion years ago, and the earliest traces of life appear approximately 500-600 million years later.
D) 4 billion years ago, and the earliest traces of life appear approximately 500-600 million years later.

Correct Answer: