Which of the following statements is true about Earths tectonic activity?

0 votes
    It occurs randomly over Earths surface in response to meteoritic bombardment..
     It died out long ago as the crust of Earth cooled.
     It is most likely driven by convection within Earths mantle..
     It is mirrored in a similar pattern of activity on the Moon.
     It is driven by changes in Earths magnetosphere..
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
It is most likely driven by convection within Earths mantle..
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)

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