Question

In the giant impact theory of the formation of the Moon, the Earth was struck by an object the size of _____ and the ejected debris contained very little _____.

Answer 1

The giant impact hypothesis suggests the Moon formed from debris ejected after Earth was struck by a Mars-sized object, mostly from their stony mantles and not metal cores.

Step-by-step explanation:

According to the giant impact hypothesis for the formation of the Moon, the Earth was struck by an object about the size of Mars.

In this cataclysmic event, a vast amount of debris was ejected into space, which eventually coalesced to form the Moon.

A significant detail of this hypothesis is that the ejected debris contained very little material from the Earth's and the impactor's metal cores; instead, most of it came from their stony mantles.