<span>The person can prepare by eating the right food, exercise, hydration of self and condition oneself for the incoming adventure like extreme.  And also the human body systems respond to changes in the external environment, the nervous system and hormones enable us to respond to external changes. </span>
        
                    
             
        
        
        
Answer:
I don't know
Explanation:
wait is this like for an assignment or sum?
 
        
                    
             
        
        
        
Answer:
lung cancer. i hope this helps