Answer:
Longitude is much harder to calculate than latitude.
Explanation:
The Earth rotates 360° per day, which is 15° per hour, and so there's a direct relationship between longitude and the time that the Sun rises and sets
 
        
             
        
        
        
Answer:
The answer is C. 
Explanation:
Examples of the Five Themes of Geography
Location: Coordinates and Relative Distance.
Human–Environment interaction: Altering the Environment.
Place: Human and Environmental Differences. 
Region: Broad Groupings. 
Movement: Transmission of Goods and Services.
 
        
                    
             
        
        
        
Alfred Wegener came up with the idea of continental drift 
 
        
                    
             
        
        
        
If the rocks are layered on a fine scale 
If the rocks are homogenous 
If the crystals in the rock vary in size