Job specialization is a characteristic of civilization that refers to what?

Certain people in a civilization perform specific tasks.

To perform specialized tasks.

Explanation:

In case of the civilization, it refers to the performing the task with a great skill like the cloth-making, artifact designing and planning the architect of the buildings and the town plannings. Location if cities around the river valleys to make an effective drainage network written texts and manuscripts etc.

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.