9 is letter d and 10 is a
 
        
             
        
        
        
Cells make up the basic structure of an organism, and they perform basic life functions for the organism.
^the first one
 
        
             
        
        
        
Nitrogen and hydrogen 
N2 +3 H2 ---> 2NH3
hope that answers the question:)
        
                    
             
        
        
        
Answer:
Explanation:
Having sex with a yeast infection can be very painful or, at best, extremely uncomfortable. If your labia or vulva are swollen, you may find skin-to-skin contact to be too rough. Friction may even rub the skin raw. Penetration can aggravate inflamed tissue, as well as increase itching and irritation