Crustal plate movements are thought to be caused by A. Convection currents in the Earth's mantle

B. Violent volcanic eruptions

C. Changes in Earth's weather
da Hint?

D. Climate change

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.