first   to help get brainest but u have to be right 

How do global positioning systems use elevation points on earth’s system to find latitude AND longitude

A.by using signals from a network of satellites

B.by using topographic maps

C. by using satellite images

D. by using photography 

Respuesta :

its A.by using signals from a network of satellites
Global Positioning System: GPS

A GPS locates the real-time geographical location of a certain thing.
For example, your phone has a built-in GPS. It connects to satellites directly above you and around you, in order to correctly determine your location.

Satellites can determine your real-time location correctly, because several satellites are used.

Thus, the answer is:
A. By using signals from a network of satellites