Author Question: Why couldn't life have originated on the Moon or Mercury? What will be an ideal ... (Read 13 times)

jc611 · **on:** Jul 27, 2018

Why couldn't life have originated on the Moon or Mercury?

What will be an ideal response?

Question 2

Why is it difficult to find fossils representative of the time that life began on Earth?

What will be an ideal response?

kingdude89 · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

For life to begin, liquid water is needed. The Moon and Mercury are airless worlds, and water would boil away into space immediately.

Answer to Question 2

Fossils this old are difficult to recognize because the earliest living organisms did not contain easily preserved hard parts, like bones or shells, and because the ancient organisms were microscopic.