 
 <prompt> ```Which action forms a different chemical substance?
Choose from:
 -crushing a rock
 -burning a piece of wood
 -mixing salt and pepper
 -melting an ice cubeThe answer is:```  
Wetin action go form different chemical substance?
Choose from:
 -crushing a rock
 -burning a piece of wood
 -mixing salt and pepper
 -melting an ice cubeThe answer na: <response>: ```burning a piece of wood``` 