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Posted by on Sunday, January 13, 2013 at 3:41pm.

The primary cause of crustal movement is_________
a.) conduction
b.) convection
c.) magnetism
d.) radiation
please help have no idea

  • earth - , Sunday, January 13, 2013 at 3:44pm

    B. convection

  • earth - , Friday, May 20, 2016 at 9:18pm


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