Answer:
The railroad was the mean of transport to new settlers going to the Great Plains in the west who sent  crops and grain to cities in the East.
Explanation:
The railroads impacted the migration to the west and helped expanded the country while exchanging crops and grain to the more populated cities stablished in the east.
 
        
             
        
        
        
Answer:
The spanish conquered the great Aztec and Inca empires by bringing diseases to kill most of them off quickly, scaring them with the horses, and using their more advanced superior weapons to kill them
Explanation:
Logic.
 
        
             
        
        
        
Answer:
The NAACP
Explanation:
Important figures like Martin Luther King Jr. and Rosa Parks did not come till later in the movement.
 
        
                    
             
        
        
        
Answer: Andrew Carnegie is a captain of industry because he started off as a poor Scottish boy but he was able to build a successful industry, he impacted the U.S. with his steel to transform cities and he donated most of his wealth to others.