Question

interactive video
questions
rewatch
4/10
what was the hypothesized proto-planet that collided with earth called?
theia
luna
prometheus
atlas

Explanation:

The giant-impact hypothesis proposes that a Mars-sized proto-planet collided with early Earth, forming the Moon. This proto-planet is named Theia. Luna is the name of Earth's Moon, while Prometheus and Atlas are moons of Saturn.

Answer:

Theia