Gravity or the gravitational pull
        
                    
             
        
        
        
Read this , I don’t know how to explain it though sorry:/
        
                    
             
        
        
        
True! I think the answer is true!
        
             
        
        
        
Answer:
D: United States
Explanation:
Absolute advantage means (in basic terms) who can produce a product at lower costs. 
Here it is shown that the United States needs far less worker hours to produce oil which means (without wages given) that it can be assumed that the United States produces it at lower costs due to the lower worker hours.
 
        
             
        
        
        
Answer:
The adoption of the 14th Amendment in 1868 guaranteed citizenship to those born or naturalized in the United States, including former slaves. Black Americans would face subsequent challenges to their civil and political rights, but the 14th Amendment ensured that they would never again face the threat of removal