Given the question: Arefrigerator is used for keeping food fresh for a long period of time, and refrigerators are major users of electricity. Given these facts, what requires a lot of electricity among the following options: - riding a bicycle - An emergency lighting source. - repair cells in the human body - sleeping on the floor - visiting a dam - Something that take eight minutes to travel to the Earth - Heating a metal filament. - keeping food fresh for long periods of time
The answer is:
keeping food fresh for long periods of time