You are presented with the question "When electricity flows to a light bulb, the energy it uses becomes what?" and the following answer choices: 
- less
 - shadowed
 - energy
 - waves
 - heat
 - unique
 - matter
 - removed

Now knowing that when electricity flows to a light bulb , the light bulb will turn on and most of the energy a light bulb uses turns into heat, choose the best answer.


 

     heat    