The earliest civilizations settled in the o a) fertile crescent. co b) mediterranean. o c) arabian peninsula. o d) sahara desert.

A) Fertile Crescent

Explanation:

The Fertile Crescent is an area located in what is known as the Middle East. This is an area where there is a valley created by two large rivers, Tigris and Euphrates, which provided suitable conditions for agriculture and development of civilization. The first civilization in the world emerged here, and it was the Sumerian civilizations. This civilization was much more advanced than any other in its time. It was a civilization with economy based on agriculture. The cities were beautiful and well organized. The people engaged into lot of activities and they started to specialize, which resulted in the development of multiple sciences, as well as technology. The Sumerian civilization actually set up the base for the development of all the other civilizations in the region, and its influence could have been seen even on European soil several millenniums after it seized to exist.