You are presented with the question "Where is energy stored before being used by an automobile to create mechanical energy?" and the following answer choices: 
- sunlight
 - layers of fat
 - The atmosphere
 - In molecules
 - fossil fuels
 - electrically
 - a hydraulic system
 - engines

Now knowing that an automobile engine transforms chemical energy into mechanical energy and chemical energy is the energy stored in molecules, choose the best answer.


 

    In molecules     