Scientists hypothesize that a large, planet-sized object collided with earth about 4.5 billion years ago and that this impact formed a. the moon. b. asteroids. c. comets. d. mars.

Scientists hypothesize that a large, planet-sized object collided with earth about 4.5 billion years ago and that this impact formed

a. the moon.
b. asteroids.
c. comets.
d. mars.

2 Answers

Scientists hypothesize that a large, planet-sized object collided with earth about 4.5 billion years ago and that this impact formed a. the moon. b. asteroids. c. comets. d. mar…

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