Final answer:
The equator is a line of latitude that divides the Earth into the Northern and Southern Hemispheres. It has the largest circumference and each day has 12 hours of daylight. The prime meridian is used to measure east-west distances on the globe.
Step-by-step explanation:
The equator is a line of latitude that wraps around the Earth and divides it into the Northern Hemisphere and Southern Hemisphere. It is the parallel with the largest circumference and is the place where every day has 12 hours of daylight. The equator is located at 0 degrees latitude and runs east-west.
It is important to note that the equator is one of the lines of latitude, not longitude. Longitude refers to the east-west location of a place. The equator is not used in the numbering system for longitude. Instead, the prime meridian, which runs through Greenwich, England, is used as the starting point for measuring east-west distances on the globe.