Mercurys evolution was different from that of the Moon because:

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    Mercury was subject to much more meteoritic bombardment than the Moon.
     The Moon contains much more iron in its interior than Mercury.
     Mercurys crust cooled and shrank, causing its surface crust to form cliffs known as scarps..
     Moons and planets are different sorts of objects and thus evolve differently.
     Mercury has at least a tenuous atmosphere while the Moon has no atmosphere.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

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Mercurys crust cooled and shrank, causing its surface crust to form cliffs known as scarps..
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)



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