The waterways and mountains
of the United States, much like the rest of the world, have had a significant
impact on where people settled and how towns and cities interacted with one
another. Large mountain ranges served as natural barriers between groups,
causing distinct regional shared cultures to develop due to the relative
isolation and shared geography that mountain ranges create. The opposite is
true for rivers, which connected communities through ease of travel, trade, and
shared access to water and other natural resources.  
 
        
             
        
        
        
Water quality is a great concern for sub Sub Saharan Africa's rural population. It is basically a region where water is very scarce and finding the right quality of water for drinking and cooking purposes is very hard for the rural people of this region. I hope the answer helps you.
        
                    
             
        
        
        
The Three Economic Sectors. According to the three-sector theory, all economic activity can be classified into one of three sectors: the primary sector, the secondary sector and thetertiary sector.
 
        
                    
             
        
        
        
Answer:
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Explanation: