Prolonged and constant use of tobacco can weaken the user's immune
system and increase the risk of many diseases.. . Which of the following
diseases can makes the air sac in the lungs less elastic, reducing their ability to absorb oxygen?. 
 B.emphysema. 
        
             
        
        
        
Answer:
When operating power tools
Explanation:
 
        
                    
             
        
        
        
Rest, elevate, ice it and take an antinflamtiory
        
             
        
        
        
Simmilarities: 
both have to be treated in a good manner 
check in on them often 
Difrences:
you wold not baby a 15 year old you so diffrent tones of voices 
diffrent medications 
things to do 
if that dosent help i can fix it