Rocks associated with volcanic activity along the margins of continents often have a ________ composition.

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      basaltic
      andesitic
      rhyolitic
      granitic
      none of the above
asked Mar 12, 2013 in Earth Science by anonymous
    

1 Answer

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andesitic
answered Mar 15, 2013 by h20 ~Top Expert~ (6,320 points)

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