What is the function of latitude and longitude lines?

The function of latitude and longitude lines is crucial for understanding geography and navigation. Latitude lines, specifically, run parallel to the Equator and are used to measure the distance north or south of the Equator. This system allows for the precise location of any point on the Earth's surface in relation to the Equator, which is designated as 0 degrees latitude. Latitude is expressed in degrees, with the North Pole at 90 degrees north and the South Pole at 90 degrees south.

By using latitude, one can easily determine how far a location is from the Equator, which has significant implications for climate, ecology, and time zones. The statement correctly identifies this essential characteristic, providing clarity on how latitude functions in geographic coordinate systems.