| A | B |
|---|
| Barter | trade |
| Bedouin | nomad in the Middle East |
| Desert | Area of land that receives less than 10 inches of rain per year |
| Desalination | Process of removing salt from salt water |
| Irrigation | To bring water to crops |
| Natural Resources | Material in the environment that people value and use to satisfy needs |
| Nomad | Person who roams from place to place and does not have a permanent place |
| Nonrenewable Resources | Natural resources that cannot be replaced once they have been used |
| Oasis | An area in the desert where fresh water is found |
| OPEC stands for | Organization of Petroleum Exporting Countries |
| OPEC's purpose | Group of countries that determines how much oil to produce and how much $ to sell the oil for |
| Renewable resources | Natural resources that are constantly being replaced by the environment |
| Sedentary | Permanently settled in one place |
