You are presented with the question "What can be done to wood and straw to produce electricity? " and the following answer choices: 
- massive damage
 - It can be crushed
 - adding heat
 - It can be burned.
 - matter vibrating
 - It can be boiled
 - Plant growth is reduced
 - it can be chopped

Now knowing that biofuel is used to produce electricity by burning and wood and straw are both examples of biofuels, choose the best answer.


 

    It can be burned.     