Molten rock rises in Earth's mantle and then sinks back toward the core in a circular pattern, this method of heat transfer is known as..
A) Conduction
B) Vibration
C)Radiation
D) Convection
assume as what happens in a pot of water as it get heats.. hot becomes less dense, rises and cools, becoming more dense then sinks- that's called CONVECTION So D- is the right answer
