To explain the large iron core of Mercury, one theory suggests that as Mercury was forming as a planet it was struck by a large planetesimal, stripping away the mantle and leaving the iron core. This theory has the advantage because it also helps to explain Mercury's:
A)3-to-2 spin-orbit coupling.
B)highly elliptic orbit.
C)Caloris Basin.
D)slow rotation rate.

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The Answer of To explain the large iron core of Mercury, one theory suggests that as Mercury was forming as a planet it was struck by a large planetesimal, stripping away the mantle and leaving the iron core. This theory has the advantage because it also helps to explain Mercury's:
A)3-to-2 spin-orbit coupling.
B)highly elliptic orbit.
C)Caloris Basin.
D)slow rotation rate.

To Explain the Large Iron Core of Mercury, One Theory