Crustal plate movement occurs because the earth's mantle flows as a result of uneven heating inside the mantle. convection cells are created by very hot material deep in the mantle rising, then cooling, sinking again, and then heating again and then repeating the cycle. this process occurs because of the energy generated by within the earth.

What change took place in china's southwest region after the communists came to power? a) encouraged by government policies, the economic base of the region changed from agriculture to nòmadic herding. b) the communist government established a special economic zone in the region. c) the leader of the religion practiced in the region went into exile, d) the leader of the religion practiced in the region was executed.