Alight bulb converts electrical energy into light energy when it is turned on, and most of the energy a light bulb uses turns into heat. Given these facts, what is converted to heat in a light bulb among the following options:
- Firecrackers
 - electricity
 - peachleaf willow
 - an object
 - layers of fat
 - an electron lens
 - sunlight
 - our nearest star


 

  electricity       