Answer:
Countries most likely create internal boundaries to: divide territory for administrative purposes.
 
        
                    
             
        
        
        
It would be stormy because weather moves eastword in the US.
        
             
        
        
        
Venus: almost no surface winds, sulfuric acid clouds, runaway greenhouse effect.
Earth: atmosphere composed primarily of nitrogen and ultraviolet-absorbing stratosphere
Mars: extremely low-density atmosphere, global dust storms.