They all help us in the United States to be what it is today
 
        
             
        
        
        
The west africans
hope that helps and best of luck!
        
             
        
        
        
A democracy is a form of government ruled by representatives that are elected by the popular vote of the people. The United States is an example of a democracy.
So your answer would be number 2. 
Hope this helped. (:
        
             
        
        
        
The ten plagues in order are:
1.the water that turned into blood and killed all marine life
2.frogs
3.lice
4.flies
5.the livestock got diseases
6.uncurable boils
7.hail,thunder storms
8.locusts
9.darkness
10.death of all firstborn egyptains
        
                    
             
        
        
        
I do believe the early Egyptians, being as smart as they where used a interesting method of a sundial. It caught the suns shadow and they where able to use it to tell the time.