Answer:
Topographic Map Symbols
Topographic maps use symbols to represent natural and human constructed features found in the environment. The symbols used to represent features can be of three types: points, lines, and polygons. Points are used to depict features like bridges and buildings.
Explanation:
 
        
             
        
        
        
Answer:
 An atom's electronegativity gets higher as you move up in the periodic table. Thus, the atoms in the top right have the highest electronegativities and the atoms in the bottom left have the lowest ones.
 
        
             
        
        
        
B. Population is the answer
 
        
             
        
        
        
Do you have choices to choose from? my best guess would be an estuary.