Question

unit review - earth systems
how do tectonic plates move?
magnetic field
expanding with the saturation of water
sliding on the heated asthenosphere

Explanation:

Tectonic plates move by sliding on the semi - molten asthenosphere layer beneath the lithosphere. The heat in the asthenosphere allows for plastic - like flow, facilitating plate movement. Magnetic field and water saturation are not the primary causes of plate movement.

Answer:

C. sliding on the heated asthenosphere