Final answer:
The main methods of heat transfer from the hot core of the Earth to its surface are conduction, convection, and radiation.
Step-by-step explanation:
The main methods of heat transfer from the hot core of the Earth to its surface are conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between objects, while convection involves the movement of heated material. Radiation occurs when heat is transferred through electromagnetic waves.