The resulting convection currents around the earth's surface is thought to be the driving force behind the movement of the plates.
(The resulting convection currents around the earth's surface; is thought; ) (The resulting convection currents around the earth's surface; to be; the driving force behind the movement of the plates)
The resulting convection currents around the earth's surface The resulting convection currents around the earth's surface
is thought to be
the driving force behind the movement of the plates