Answer :

Sazz
Longitudes are Imaginary lines, which are seen only in globes and maps.
These are used to identify diff places and also used in planes to Reach a destination. (:
Lines of longitude are imaginary lines that run from north to south that is vertically in an atlas or globe.
they pass through both the poles and are perpendicular to the latitudes.
the most important longitude is the prime meridian which passes through the Greenwich observatory in London.