Answer:
Its d. ive done it before.
 
        
             
        
        
        
That it can send signals to diffrent people
        
             
        
        
        
C) moving materials in and waste products out
        
             
        
        
        
Answer:
a theory cannot become a law 
Explanation:
the difference between a scientific theory and a scientific law because a theory is an in depth explanation of an observed phenomenon. a law is a statement about an observed phenomenon or an unifying concept (i.e.: newtons law or gravity - no explanation on how it works or what it is just that it exists.) 
 
        
                    
             
        
        
        
if you are talking about both then the first when measures the meters in a high tide and a low tide and the bottom one shows how it has been increasingly rising and lowering