You are presented with the question "What converts chemical energy into mechanical energy?" and the following answer choices: 
- Something made by Apple
 - Something made by Cadillac
 - animal transport
 - Something made by DuPont
 - some invertebrates
 - Riding a bike
 - transportation technology
 - Something made by Dow

Now knowing that an automobile engine transforms chemical energy into mechanical energy and one classic example is the 4.1L Cadillac engine, choose the best answer.


 

  Something made by Cadillac       