So they wouldn't have to do labor themselves and they can manipulate the slaves into doing work for less wages
        
             
        
        
        
<span>B.to test new space technologies</span>
        
                    
             
        
        
        
It affects language by becoming harder for the immigrants to understand and work with the citizens and can also change language overtime.
        
                    
             
        
        
        
The answer is A, or It was a clear victory for the Northern states. 
Explanation:
The Battle of Antietam stopped the Confederacy’s advance into the Northern territories. Because the North won a tough victory in this battle, the way was paved for the Emancipation Proclamation to be issued.
        
             
        
        
        
One way that politics/society is different today as in 1939 is that in 1939 voting wasnt the same for some people, but today everyone has rights to vote. One way that is the same is that males have been president since 1939- today.