Im going with pictorial data
        
             
        
        
        
Answer:
Explanation:
Cultural convergence occurs when multiple cultures become more like one another through exposure to traditions, ideals and languages. The United States often participates in cultural convergence when it assists a country in developing a democratic government. ... A technology-caused generation gap exists in many cultures.
 
        
                    
             
        
        
        
Answer:
A, because of the cataracts. 
Explanation:
The cataracts made the river too dangerous to travel in as the rock filled rapids would destroy the boat, and destroy them.
 
        
                    
             
        
        
        
They use a legend for that, to place the distance by inches, or landscapes, or landmarks, States countries