You are presented with the question "what do most lawn mowers convert into motion?" and the following answer choices: 
- fossil fuels
 - flow of electrons
 - Greenhouse gases
 - solar power
 - hydroelectric power
 - heat energy
 - batteries
 - kinetic energy

Now knowing that agasoline lawn mower converts gasoline into motion and oil and gasoline are fossil fuels, choose the best answer.


 

 fossil fuels        