Exothermic change. Because the firework when it exploded, released energy in the form of light. In exothermic changes energy is released, and in endothermic changes energy is absorbed.
        
             
        
        
        
Answer:
medical books 
Explanation:
because medical books dont realy lie about anything but online articles and magazines cant be trusted
 
        
             
        
        
        
C~<span>Kansas was once underwater. is your answer, have a good day & hope this helps =)</span>
        
                    
             
        
        
        
Answer:
The first part of finding out Lucy having ADA-SCID was when I realized there were no HIV proteins in her blood, getting rid of the possibility of her having HIV. Then, I realized she had a high number of Deoxyadenosine in her blood. This proves she has ADA-SCID because when the ADA doesn't work you find excess amounts of Deoxyadenosine in the blood.
Explanation: