i see that you want to write an essay on this
irrigation
Mecca and Dubai are the most important market places in the middle east.
Riyadh is not known as the Middle East. Riyadh is an important city in the Middle East and the capital of Saudi Arabia, but the Middle East has a lot more than just Riyadh.
The Middle East's position on the crossroads of international trade has resulted in its central importance early in history. This is why the Middle East was the location of some of the earliest civilizations.
Brent huhn
yes
Desolation is not important in the Middle East. If you meant to ask about Desalination, please see the Relatd Question below.
There are many holy cities in the Middle East, but Jerusalem and Mecca are most important.
The Middle East is an important world resource because there is a lot of oil in that area which is useful. For example, gas for your car.
give an example of a transportation barrier in the middle east
Oil.
Petroleum.