Answer:
Pretty sure that its C im really sorry if I'm wrong
 
        
             
        
        
        
Answer:
The one major change that occurred was the placement and organization of the electron.
 
        
             
        
        
        
Answer:
I'm pretty sure it's B, pressure.
Explanation:
I hope this helped :)
 
        
                    
             
        
        
        
Answer:
A. Revise the hypothesis based on the results and use it to design another experiment.