Is this a multiple choice question?
 
        
                    
             
        
        
        
Southerners also defended slavery because it was connected to property rights as enshrined in the US Constitution.
        
             
        
        
        
I think it is b. if you get a green card, it means you are going to live in america forever.
        
                    
             
        
        
        
Answer:
Show the assignment because I don’t remember 
Explanation:
 
        
             
        
        
        
Answer:
The biggest changes were in rigging. At first they concentrated on lateen sails, then added a mix of square sails and lateen for deeper penetration into the South Atlantic, with further changes for the much longer route round the Cape. Knowledge of these techniques was protected by forbidding sales of ships to other countries. A third commercial advantage was Portugal's ability to absorb “new Christians” — Jewish merchants and scholars had played a significant role during Muslim rule.
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