Final answer:
The type of heat transfer that occurs between a heating lamp and the food that it is keeping warm is radiative.
Step-by-step explanation:
The type of heat transfer that occurs between a heating lamp and the food that it is keeping warm is radiative. Radiative heat transfer occurs when electromagnetic radiation, such as infrared radiation, is emitted or absorbed. In this case, the heating lamp emits infrared radiation which is absorbed by the food, causing it to warm up.