Weegy: A fault is a CRACK in the earth's crust, and a fold is a BENDING of the earth's crust.
User: The earth's interior heat and pressure drive mantle convection. This is the power that drives _____, the main force behind earthquake and volcanic activity.
Weegy: The earth's interior heat and pressure drive mantle convection. This is the power that drives Plate tectonics, the main force behind earthquake and volcanic activity.
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