The best statement to complete the diagram is that African Americans migrated to obtain jobs in northern factories.
<h3>Why were African Americans able to get jobs?</h3>
WWI had drained the nation of the manpower needed to sustain industrial production. This manpower however, had mostly been White people. 
With them being in shortage on account of joining the army, African Americans were able to take their place and moved to the North to work in factories. 
In conclusion, option B is correct. 
Find out more on labor shortage in WWI at brainly.com/question/404503.
 
        
             
        
        
        
<span>It enters the plant from the ocean, salt is removed from it, and it exits the plant in the form of freshwater.
Water when enters in a desalination plant </span>enters from the ocean, salt is removed from it, and it exits the plant in the form of freshwater. It is for this reason that a desalination plan must be built near the sea and they are used in many countries that don't have access to freshwater. However, they are very expensive and the technology could be improved.
        
                    
             
        
        
        
Answer:
He refused to accept the secession of states from the union.
 
        
             
        
        
        
During the 1848 Springtime of Peoples, revolutionaries in the Italian states established "republics", since they were democratic in nature, although they soon fell to tyrannical rule.