The correct answer is:
Convection currents
Step-by-step explanation:
Convection is the heat distinction due to majority conversion of molecules inside liquids such as vapors and liquids, including molten rock. Convection takes place within advection, diffusion or both. Convection courses in the magma drive plate tectonics. Heat produced from the radioactive breakdown of elements wide in the center of the Earth produces magma (molten rock) in the aesthenosphere.