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Since you need water to sustain large populations and agriculture and deserts do not have water, most of the large populations in the Middle East are located near the four permanent rivers in the Middle East: the Nile, the Tigris, the Euphrates, and the Jordan.
Where have you been? Islam is the dominant religion in the Middle East and the culture of most of its people. Smell the roses, man.
The people of the middle east that you inquired about would be considered brown, as people who live in a hot/warm climate generally have olive toned skin as a protection from the sun.
The four most important rivers in the Middle East are the Nile River, the Jordan River, the Euphrates River, and the Tigris River.
The rivers are the Tigris and the Euphrates, and they are located in the middle east, around Turkey and Iraq.
Since the Middle East is generally arid or semi-arid, most people live along rivers where there is water to drink and irrigate crops or along the sea to supplement their diet with seafood.
Middle East (south west asia)
Aral
With the exception of the Nile, the Jordan, the Euphrates, and the Tigris, all Middle East and North African rivers are seasonal, meaning that in summer, they evaporate away.
People in the Middle East prefer to settle in areas where freshwater is readily accessible, either from rivers or lakes. In modern times, this has extended to regions where oil wealth is sufficient to provide for desalination plants in coastal regions.
People in Europe wanted to travel again after getting the products of the Middle East. (This answer is for study island.)
Rain rarely comes in the Middle East. As a result, it has a minimal overall effect. Also, in terms of modern warfare, rain has little effect except in jungles where it softens the ground (which does not happen in the Middle East).