Summarize the four main hypotheses for the origin of the Moon.

Summarized

Explanation:

Among the many hypotheses proposed for the origin of the moon the four main are summarized as

the fission hypotheses in which moon was once a part of earth but got separated due to collision. The second hypotheses is that the moon formed along with the Earth but independently. Moon was formed else where in the solar system and got captured by the Earth's gravitational pull. The newer giant impact hypotheses suggest that a mars sized object grazed Earth, Ejecting material from both Earth and itself, that material condensed to form moon.