Longitude.
Prime meridian and international dateline are also included.
These are known as lines of longitude or meridians
The lines that meet at the North and South Poles are called meridians of longitude. These lines run from the North Pole to the South Pole and are used to measure how far east or west a location is from the Prime Meridian.
East to west- Latitude Lines North to south- Longitude Lines
Lines of latitude, also know as parallels, run east-west. They measure the angular distance north and south of the equator.
Lines of latitude are called parallels. The lines start at the equator and are located north and south of the equator.
Those are meridians of constant longitude.
Another name for latitude lines is parallels. These lines run parallel to the equator and are used to measure how far north or south a location is from the equator.
Lines of longitude are also known as meridians. They run north-south and measure east-west.
The imaginary lines that run from north to south are called lines of longitude. The most significant one is the international date line, which divides the extreme east from the extreme west.
Lines of latitude, also know as parallels, run east-west. They measure the angular distance north and south of the equator.
The name of the mountain range in eastern Egypt is the Red Sea Hills. The Red Sea Hills run north to south along the Red Sea.
-- Most of the imaginary lines on the surface are parallels of latitude, meridians of longitude, political boundaries, and shipping routes. -- The imaginary lines through the center of the globe are the axis and diameters.