Explanation:
The purines are ribose and deoxyribose 
 
        
             
        
        
        
P Waves are compressional and the fastest moving seismic wave 
S waves are slower than P waves and they can only travel through solid rock. S waves move the particles it pushes through up and down or side to side.
 
        
                    
             
        
        
        
Answer:
Its B because if it reacted chemically it wouldn't be considered a physical property since its changing on the "inside"
 
        
                    
             
        
        
        
<span>photosynthesis in algae cells </span>
        
             
        
        
        
It is a 5% more chance that boys will be diagnosed with autism than girls.
If you can give me the brainliest award!!