Radar is most often used to
a. combine maps with data
b. determine exact locations
c. increase satellite reception
d. forecast the weather

Radar is most often used to "determine exact locations".

Radar refers to a detection framework that utilizes radio waves to decide the range, point, or speed of articles. It can be utilized to distinguish flying machine, ships, rocket, guided rockets, engine vehicles, climate arrangements, and territory. A radar framework comprises of a transmitter delivering electromagnetic waves in the radio or microwaves space, a transmitting reception apparatus, an accepting receiving wire (regularly a similar receiving wire is utilized for transmitting and getting) and a recipient and processor to decide properties of the object(s).

answer; approx,300,000 ;