Which energy sources can transfer thermal energy to a heat pump? Check all that apply.airthe groundwatergas fuelwood fuel

A heat pump moves thermal energy from a heat source to a place that needs heating. It can take heat from the air, the ground, or water, so air, the ground, and water are correct. Gas and wood are fuels that are burned to produce heat rather than sources from which a heat pump transfers thermal energy.

AI-written and checked against the verified answer.