I'm NOT 100% sure about this answer but I think it's the Lines of Longitude
        
             
        
        
        
<span>With ten years’ experience leading international recruitment for African candidates, when you want to return to work in Ivory Coast.</span>
        
             
        
        
        
Answer:
The answer is latitude,elevation,vegetation and winds.
 
        
                    
             
        
        
        
matias may live farther away so its  0.7 kilometers.
jack may live closer to the bookstore so it may only be 0.5 kilometers.