| A | B |
| a political unit that controls a particular territory | State |
| people who roam from place to place | Nomads |
| a geographic region with too little rainfall to support much plant life; also a vegetation zone | Desert |
| underground oil that has been discovered but remains unused | Oil Reserves |
| gas within the earth’s crust, or outer layer | Natural Gas |
| the earth’s outer layer | Crust |
| an area defined by one or more natural or cultural characteristics that set it apart from other areas | Region |
| petroleum as it comes out of the ground and before it has been refined or processed into useful products | Crude Oil |
| a wealthy country with an advanced economy. These countries have many industries and provide a comfortable way of life for most of their people | Developed Countries |
| a resource that takes so long to form that it can’t be replaced. Oil is an example of this | Nonrenewable Resource |
| a resource that can’t be used up or that can be replaced quickly as it is used up. Sunlight and wood are examples of this | Renewable Resource |
| energy produced from steam or hot water from deep inside the earth | Geothermal Energy |
| a group of people in a country who share a unique culture and identity | Ethnic Groups |
| rock that does not let liquid or gas to flow through it | Impermeable Rock |
| a large piece of Earth’s crust that floats on the liquid mantle | Tectonic Plates |
| the way people or things are spread out over an area or a space; also the way resources, power, or goods are divided among people or groups | Distribution |
| the average age that a person in a given population can expect to live to. It varies from one country to another. | Life Expectancy |
| a total value of goods and services produced in a country in a year | Gross Domestic Product (GDP) |
| by or for each person. It is calculated by dividing the total amount of something by the number of people in a place | Per Capita |
| the number of infants, out of every 1,000 babies born in a particular year, who die before reaching age 1 | Infant Mortality Rate |
| a large body of salt water with little or no connection to the ocean | Inland Sea |
| the condition that occurs when people don’t have enough clean fresh water to meet their everyday needs | Water Stress |
| damage to or destruction of the natural environment. When such damage occurs, habitats are destroyed, biodiversity is lost, or natural resources are used up | Environmental Degradation |
| safe for drinking | Potable |
| made up of water that is fresh, not salty | Freshwater |
| containing salt | Saline |
| the buildup of salt in soil or water | Salinization |
| water lying deep under the ground that supplies wells and springs. Over have the people in the world depend on this for their drinking water | Groundwater |
| a crop that is grown to be sold rather than to be consumed by the farmers and their families | Cash Crop |
| a chemical substances used to control anything seen as a pest, such as insects, weeds, or rodents | Pesticides |
| the pattern of weather over a long period of time | Climate |
| to move from one region or country to another | Migrate |
| solid and liquid waste from homes and other buildings that is carried away by sewers or drains | Sewage |
| a chemical that is poisonous to humans or other living things | Toxic Chemicals |
| water that has been used; for example, for washing or producing goods | Wastewater |
| the religion based on the life and teachings of Jesus Christ, the Bible is the Holy book | Christianity |
| belief in one good and teachings from the Torah | Judaism |
| belief in one god, the prophet is Mohammed, Koran is the Holy book | Islam |
| founded by Buddha, spiritual and physical discipline, ultimate goal is to reach nirvana | Buddhism |
| to show, as by measuring or recording | Indicate |
| final decision | Conclusion |
| act of producing or creating | Production |
| to create by a vital or natural process | Generate |
| to go down | Declined |
| to change | Modify |
| result or consequence | Effect |
| rebirth of the soul in a new body | Reincarnation |
| a measure of living standards that include life expectancy, education, and per capita GDP | Human Development Index |