Agasoline lawn mower converts gasoline into motion, and most mowers are powered by gasoline-driven combustion engines. Given these facts, what does a combustion engine convert into motion among the following options:
- Gasoline
 - Grass clippings
 - energy
 - fossil fuels
 - Energy.
 - heat energy
 - A steam engine
 - An electric motor


 

 Gasoline        