It corrodes the copper by oxydation
        
             
        
        
        
Answer:
This is the answer bro hope it will help you
 
        
                    
             
        
        
        
True, because people should reach their full potential within themselves and human psychologist should help those that need help to reach it.
        
             
        
        
        
Answer: Doppler Effect
Doppler Effect can be described as the change in
wavelength of a wave like upward shift in frequency for an object whom is
approaching and an apparent
downward shift in frequency for observers from whom the source is receding. This effect can be observed when a boat moves through the water then
the waves in front bunch up while the waves behind the boat spread out. 
 
        
             
        
        
        
A higher frequency. I just got this answer on usa test prep.