You are presented with the question "what does methane produce when burned?" and the following answer choices: 
- carbon dioxide
 - energy
 - electricity
 - The atmosphere
 - heat energy
 - adding heat
 - It expands
 - kinetic energy

Now knowing that biofuel is used to produce electricity by burning and biofuels include ethanol, methanol, biodiesel, biocrude, and methane, choose the best answer.


 

   electricity      