You are presented with the question "What converts chemical energy into sound?" and the following answer choices: 
- a firework
 - sensory neurons
 - Gunshots
 - a bottle
 - a battery
 - animals
 - a flashlight
 - engines

Now knowing that afirecracker converts chemical energy into sound and fireworks are illegal, including firecrackers, choose the best answer.


 

 a firework        