Answer:
1. Northern Advantage 
2. Southern advantage 
3. Cotton gin
4. Stephen Douglas
5. Jefferson Davis
 6. Richmond 
7. Harriet Tubman
8. South Carolina
 9. John Wilkes Booth
10. 13th amandement 
11. Fort Sumter
 12. Appomattox Courthouse
Explanation:
i just tool the test and got a 100 percent
 
        
             
        
        
        
Well since George Washington WAS the first president of USA and untrodden ground means “not having been walk on” the answer is A. Becoming the first president of united states
        
             
        
        
        
Because of jobs, safety and family.
        
             
        
        
        
Answer:
The 300,000-year-old bones and stone tools were discovered in a surprising place and could revise the history of our species 
By Ed Yong
 
        
             
        
        
        
Holy shoot, you just keep them coming!