I really don't know the answer
1. What substance in your ears helps keep germs and dirt out?
      
       
     Earwax 
 
 
       
     Tissues 
 
 
       
     Blood 
 
 
       
     Mucous 
 
 
    
 
     Earwax 
 
 
       
     Tissues 
 
 
       
     Blood 
 
 
       
     Mucous