The driving mechanism for plate tectonics is _____________________.
A. the moon's tidal pull
B. convection of the upper mantle
C. convection of earth's core
D. magnetic reversals

Question

The driving mechanism for plate tectonics is _____________________. 
	A.	the moon's tidal pull
	B.	convection of the upper mantle
	C.	convection of earth's core
	D.	magnetic reversals

anonymous · Answer

I'll give you a clue for this problem, even though it should really be in the Geology section. Think about which bit of the Earth interacts with the crust ie the tectonic plates themselves.