Fact 1: Afirecracker converts chemical energy into sound.

Fact 2: Audible ground fireworks, such as firecrackers and chasers, are illegal in Kentucky.

Given the two facts above, answer the question "Audible ground fireworks convert chemical energy into what?" with the following options: 
- Light
 - chemical energy
 - matter
 - plasma
 - sound
 - energy
 - heat
 - fire


 

     sound    