Question

what is the cause of tectonic plate motion?
view available hint(s)
earths rotation
tidal forces from the moon
magnetic field reversals
convection in the upper mantle
earthquakes

Explanation:

Tectonic plate motion is mainly caused by convection currents in the upper mantle. The heat from the Earth's interior causes the mantle material to circulate, which in turn moves the tectonic plates. Earth's rotation, tidal forces from the Moon, magnetic field reversals, and earthquakes are not the primary causes of tectonic plate motion.

Answer:

convection in the upper mantle