The Organization of Petroleum Exporting Countries unites countries extracting petroleum that are involved in the Middle East, since no western states are members. 
        
             
        
        
        
Answer:
They divided the states into different time zones.
Explanation:
As trains left to go to locations, it would be later or earlier depending on which direction they went, so take for example a train going from New York to Seattle. It would probably be a couple ahead of New York.
 
        
             
        
        
        
(3) People have potential and can improve
<span>themselves by learning</span>
        
                    
             
        
        
        
Answer:
A new birth of freedom
Explanation:
If we are thinking about <em>slavery,</em> a <em>new birth</em> of <em>freedom</em> would signify the end of slavery.
The others would not make sense, as they are referring to time and various aspects of the physical fighting of the war.
 
        
             
        
        
        
The answer is D. President Mckinley's desire for war