Final answer:
Latitude and longitude are coordinate systems used to express the absolute location of any point on Earth, defining a unique geographic address.
Step-by-step explanation:
Latitude and longitude are used to express an absolute location on Earth. These geographical coordinates, lines of latitude and longitude, operate on a grid system which can precisely locate any point on the planet. As part of the geographic coordinate system, latitude is the measurement north or south of the Equator, measured in degrees up to 90°, while longitude is the measurement east or west of the Prime Meridian, also measured in degrees up to 180°. It is this system that enables us to form the distinctive 'address' of any location on Earth, allowing for detailed cartographic representations and precise navigation.