An example of a command economy is like the Soviet Union North Korea and Cuba
        
                    
             
        
        
        
Branch Rickey signed a contract with Jackie Robinson that would bring him to the major leagues
        
             
        
        
        
Answer:
Explanation:
These types of civilizations tend to develop and grow near a river for various reasons. The most important reason, is because they had an easy access for a reliable source of water that helped with agriculture and other needs that arose at the time. With a near river and constant raining, these civilizations made it possible to grow more crops than needed, therefore they could sustain an agricultural village. Additionally, this situation allowed some members of the community to work and engage in non-agricultural activities, such as construction (for buildings and cities), metalworking, trade and many other tasks. With the help of boats, they could transport people and goods in a sufficient way; allowing them to develop and grow in trade.