Question

What is the geographical grid and how is it useful to us?

Answer 1

The geographic grid is fundamental to the study of geography because its medium of communication relies so heavily on the use of maps. The lines are a man-made invention based off the location of the north and south poles.
Latitudinal lines measure degrees north to south, with 0 degrees being the exact halfway point between the north and south poles. Longitudinal lines measure degrees east to west, running vertically between the north and south poles