Question

Which statement is true?

1.) The earth's moon is thought to have formed when a Mars-sized planet collided with Earth during its final stages of planetary accretion.
2.) Without the earth's moon, life on Earth would not be possible.
3.) The earth's moon is the smallest moon relative to its host planet.
4.) The earth's moon is the same size as the earth.

Answer 1

its number 1. my cousin had a book that said it. he was really into space