The prime meridian.
The Prime Meridian and the meridian of 180° longitude, together, do.
The Prime Meridian divides the globe into Eastern and Western hemispheres, just as the equator divides the globe into Northern and Southern hemispheres.
The Prime Meridian, located at 0 degrees longitude, divides the eastern and western hemispheres of the Earth. When standing at the Prime Meridian, countries to the east are in the Eastern Hemisphere and countries to the west are in the Western Hemisphere.
Technically, they all do, but the prime meridian is the one that's recognized.
it is in the middle of the earth longitude(east and west)
Prime Meridian
The Prime Meridian, located at 0 degrees longitude, divides the Earth into the Eastern and Western Hemispheres. It runs from the North Pole to the South Pole, passing through Greenwich, England. Longitudes to the east of the Prime Meridian are considered part of the Eastern Hemisphere, while those to the west are in the Western Hemisphere.
The Prime Meridian divides the Earth into the eastern and western hemispheres. It is located at 0 degrees longitude and passes through Greenwich, England.
The equator (0° latitude) divides the Earth into the Northern Hemisphere and the Southern Hemisphere. The Prime Meridian (0° longitude) divides the Earth into the Eastern Hemisphere and the Western Hemisphere.
Prime Meridian. Hope this helps!
Zero degrees
o degrees