Question

The equator is the main line of latitude that circles Earth. It is the same distance from the North Pole as it is from the South Pole. The equator is the starting point for measuring degrees of latitude. Each line of latitude is marked with a number that says how many degrees north or south of the equator it is.

The prime meridian is the main line of longitude that circles Earth. It is the starting point for measuring lines of longitude. Each line of longitude is marked with a number that says how many degrees east or west of the prime meridian it is. You can accurately identify absolute, or exact, locations on Earth. You determine the degrees that identify the latitude and longitude lines that cross closest to your location.