Final answer:
Lines of latitude and longitude form an imaginary grid system that enables locations on Earth to be located exactly.
Step-by-step explanation:
Lines of latitude and longitude form an imaginary grid system that enables locations on Earth to be located exactly. Geographers and mapmakers use this grid system to organize and identify places on the earth. The lines of latitude express distance from the equator, while longitude expresses distance from the Prime Meridian. This system allows us to accurately locate, measure, and study spatial activity.