What is the time gap between the formation of Earth and the origin of life?
A. 1 billion years
B. 0.5 billion years
C. 4 billion years
D. 4.5 billion years
Answer:B
What is the time gap between the formation of Earth and the origin of life?
A. 1 billion years B. 0.5 billion years C. 4 billion years D. 4.5 billion years