Answer: drought making he soil less compact
Explanations   
The farmers keep growing the same crops, the crops the were growing were making the soil weak.
 
        
             
        
        
        
Answer:
The 14th amendment extended liberties and rights that were allowed by the Bill of Rights to former enslaved people. 
Explanation:
This might not be right but hopefully it helps! 
 
        
             
        
        
        
Brown v. Board of Education of Topeka was a landmark 1954 Supreme Court case in which the justices ruled unanimously that racial segregation of children in public schools was unconstitutional.
I could be wrong
        
                    
             
        
        
        
They planted crops in the fertile river banks