Final answer:
The equator is an example of a latitude line, which is a circle of latitude dividing the earth into the Northern and Southern Hemispheres at 0 degrees latitude.
Step-by-step explanation:
The equator is an example of a latitude line. Geographers and cartographers use lines of latitude and longitude to organize locations on the earth. The equator is the largest circle of latitude, dividing the earth into the Northern and Southern Hemispheres. It is called 0 degrees latitude and is the only line of latitude without any letter following the number.