Answer:
The answer is Lines. 
Explanation:
A visible line, or object line is a thick continuous line, used to outline the visible edges or contours of an object. A hidden line, also known as a hidden object line is a medium weight line, made of short dashes about 1/8” long with 1/16”gaps, to show edges, surfaces and corners which cannot be seen.
 
        
             
        
        
        
Answer:
Yes this statement is true 
Explanation:
Satelites help show a visual to cartographers to make more accurate maps easier.
 
        
             
        
        
        
B- You can adjust the mouse's double-click speed.
Some computer mouse software (depends on brand) will allow you to set new tasks for the mouse to perform.  Sometimes there are mice that have extra buttons that can be programmed to do certain tasks.
        
             
        
        
        
Computer. :) 73% have a computer with a broadband connection to the internet, if you need that info too.