1) What drives plate movement? a) Convection currents in the Earth's mantle b) Human activity c) Earth's rotation d) Wind and ocean currents 2) What occurs at a divergent plate boundary? a) Plates collide and crumple b) Plates slide past each other c) Plates sink into the mantle d) Plates move apart and new crust forms 3) What is the process called when one plate is forced beneath another? a) Sea-floor spreading b) Subduction c) Plate convergence d) Continental drift 4) What type of plate boundary is associated with earthquakes and volcanic activity? a) Divergent b) Convergent c) Transform d) All of the above 5) What is the term for the movement of plates over long periods of time? a) Geologic time scale b) Plate tectonics c) Continental drift d) Sea-floor spreading

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