| A | B |
| wadis | dry steambeds |
| fossil water | water that is not being replaced by rainfall |
| theocracy | a government ruled by religious leaders |
| shah | old Persian title called king. |
| revolution | drastic change in a country´s government and way of life. |
| Tehran | Iran´s capital |
| Baghdad | Iraq´s capital |
| embargo | limit on trade |
| OPEC | International Organization whose members influence on the price of oil. |
| Shia | Group of Muslims who believe that true interpretation of Islamic teachings can only come from certain religious and political leaders. |
| Sunni | Group of Muslims who believe in the ability of the majority of the community to interpret Islamic teachings. |
| oasis | a wet, fertile area in a desert that forms where underground water bubbles to the surface. |
| Arabian Peninsula | This region´s countries are arranged in a semicircle |
| Red Sea | Body of water surrounded by the Arabian Peninsula, Iraq, and Iran |
| Persian Gulf | The Arabian Peninsula´s western border |