Answer:
a musican cretes sound using their energy
Explanation:
 
        
             
        
        
        
Answer:
The answer is C
Explanation:
because I remember learning this 
 
        
                    
             
        
        
        
I think it would be a quarter note?
        
             
        
        
        
The last one is most likely to be correct
        
             
        
        
        
Answer:
A cross-connection is a point in plumbing where it is possible for a non potable (not drinkable/safe to drink) to come in contact with a potable (safe to drink) water supply. so I think the answer would be A