<span>St. Lawrence River, the Great Plains, and the Rocky Mountains are major land forms that both Canada and the United States of America share.  You could also say the great lakes. Hope I helped.  </span>
        
             
        
        
        
All river water comes from melted ice from mountains near them, so the time of year to temp. change depicts how much ice is melted into the river banks.
        
             
        
        
        
heat, wind, moisture/ humidity, dryness, natural disasters 
 
        
                    
             
        
        
        
Answer:
While this is mostly opinion, I would prefer option 2. With its lighter cyan colors and beautiful mountain scenery along with a serene beach tucked into a small cove, it is definitely the one I would use above any of the others.