Why do tectonic plates on Earth's surface move?

Question

-the pressure from the ground pushes the plates apart
-The plates are surrounded by bodies of water that push the plates
-The iron blocks in Earth's core collide and move the plates
-The heat from Earth's core moves molten rock beneath the plates

Answer 1

The correct explanation for why tectonic plates on Earth's surface move is:

The heat from Earth's core moves molten rock beneath the plates.

This movement of molten rock, or magma, in the mantle creates convection currents that contribute to the movement of tectonic plates on the Earth's surface. As the hot material rises, it cools and sinks, creating a cycle that drives the movement of the plates above.