How does rock move inside the Earth's mantle? A. Rock inside the mantle is a molten liquid that is heated and moves by convection currents.
B. Pressure builds on the rock at faults, and rock breaks away, causing earthquakes.
C. As the rock inside the mantle cools and solidifies, and it can only move when breaking along faults.
D. Heavier magma moves downwards until it becomes lighter had then rises towards the crust.