You are presented with the question "Coal is used to produce the movement of electrons by what in coal-fire power stations?" and the following answer choices: 
- cooling
 - energy
 - rotating
 - burning
 - heat
 - engines
 - mining
 - sun's heat

Now knowing that coal is used to produce electricity by burning in coal-fire power stations and electricity is really the movement of electrons, choose the best answer.


 

    burning     