What has been the primary mechanism for creation of the large-scale features of Earths continents and crust?

0 votes
    Volcanic activity that has built up the large mountain ranges.
     Cratering due to large-scale meteoritic impact.
     Crumpling due to contraction caused by planetary cooling.
     Drift of crustal plates due to convection in the aesthenosphere.
     Expansion and contraction due to variations in solar heating.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
Drift of crustal plates due to convection in the aesthenosphere.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)



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