The Columbian Exchange was when the old world (Europe) trade with the new world (America) items. for example: Old World had horses. So if Europe never came to America... we wouldn't have them. Or new world had tomatoes. If Europe didn't have tomatoes... We wouldn't have pizza or delicious Italian goods.
        
                    
             
        
        
        
predestination, in Christianity, is the doctrine that God has eternally chosen those whom he intends to save. 
How did the belief in predestination affect a Puritan in everyday life?
Predestination is a word that means that the Puritans believed that God had already chosen who was going to Heaven before the people were even put on this earth, and they must live a perfect life in order to stay in God's good graces so they wouldn't upset God and he wouldn't basically change His mind and send them to hell.
 
        
             
        
        
        
The Nile starts in east Africa and ends at the mediterranean Hope this helped!