What is refrigeration defined as?

Refrigeration is defined as lowering the temperature of a substance below that of its surroundings, which is precisely what the correct answer states. This process involves the removal of heat from an area, substance, or environment, thereby cooling it. In refrigeration systems, a refrigerant absorbs heat from the space or substance to be cooled and carries it away for dissipation, typically to the outside environment.

This definition encompasses a broad application beyond merely cooling beverages or maintaining a specific ambient temperature; it focuses on the principle of heat transfer and the resultant temperature difference created by refrigeration techniques. By lowering the temperature below the surrounding environment, refrigeration effectively preserves food, maintains comfortable living conditions, and supports various industrial processes.