The sky is pale blue in higher altitudes while it is deeper blue in lower altitudes. This is because there is more air molecule closer to earth surface (as a result of higher air pressure) than higher altitudes. The air molecules are responsible for scattering of sunlight hence giving the sky its blue hue. The more the air molecules the more the scattering. 
        
                    
             
        
        
        
Answer:
Most people live outside the deserts.
Explanation:
could be wrong but thats what I would put.
 
        
             
        
        
        
Answer:
ok so amarica is far off to the west
Explanation:
 
        
                    
             
        
        
        
Answer:
 planet's orbital eccentricity and semi-major axis
Explanation:
The eccentricity and the semi - major axis controls the size and  shape of the orbit of the planet  . The value for the semi major axis is equal to the half of largest diameter of the elliptical orbit .
The eccentricity controls the shape of elliptical orbit . It is the ratio of the center to the focus ( sun ) length and the semi - major axis length . 
 
        
             
        
        
        
Answer:
C. It formed the Great Lakes.
Explanation:
     At the height of the last Ice Age, some 20,000 years ago, ice sheets in the northern hemisphere (Eurasia at the top, North America at the bottom) covered the largest area of the territory now known as North America. Scientists believe that the formation of the five Great Lakes was influenced by the movement of ice during the latest ice age.