Question

1. what drives tectonic plate movement?

coriolis effect.
convection currents
the earths magnetic core
gravity

Explanation:

Convection currents in the mantle are the main driver of tectonic plate movement. The Coriolis effect affects wind and ocean currents due to Earth's rotation. The Earth's magnetic core is related to the magnetic field. Gravity has a role in subduction but is not the primary driver. Convection currents (hotter, less - dense material rising and cooler, denser material sinking) create forces that move the tectonic plates.

Answer:

Convection currents.