Don't quite know what you are asking, but what they all have in common are deserts and some of them border the The Mediterranean sea.
The desert
A mountain range, the Himalayas.
Population is not an attribute ascribable to inanimate objects such as physical features. It is biological organisms that have populations.
Arabic.
Smurf/Muslim
Canada east physical feature would be the climate ectreames
the African rift valley
gas? I think it is oil
The Nile Valley and Mesopotamia
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.
Deserts cover much of the Middle East. Lebanon is the only Middle East country with no deserts.
Deserts cover much of the land in the Middle East.
Natural gas,minerals.petroleum