Why is the imaginary dividing line that separates the eastern and western hemispheres given two names?

It’s easy to study and they lie in different geographical structure

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

Answer carbon dioxide ice;