They followed the lines of ancient glaciers. They were defined by large farms and grasslands. They followed the system of rivers, canals, and dams. They were naturally defined by deserts, mountains, and seas.
        
             
        
        
        
Answer:
A.  the regulation of schools
Explanation:
hope it helps have a good day
 
        
                    
             
        
        
        
The main result of the Supreme Court ruling in Gibbons v. Ogden was that "<span>The Court defined interstate commerce and declared federal law supreme over state law," since the ruling was that the power of Congress to regulate interstate commerce applied to navigation as well. </span>
        
             
        
        
        
Answer:
They invented paper, water clocks, sundials as well as Confucianism. They were also in the time period where the Silk Road was popular. 
Explanation:
 
        
             
        
        
        
Farmers (those were wealthy farmers which the Soviet regime didn’t like)