| A | B |
|---|
| geography | The study of the world and the people and things that live there. |
| landform | A feature on the surface of the land. |
| plateau | A high, steep-sided area frising above the surrounding land. |
| climate | The type of weather a place has over a long period of time. |
| equator | The imagoinary line around the middle of the earth. |
| capital resource | A tool, machinge, or building that people use to produce goods and services. |
| human resources | People and the skills and knowledge they bring to their work. |
| scarcity | Not having as much of something as people would like. |
| opportunity cost | The thing you give up when you decide to do or have something else. |
| conservation | The protection and wise use of natural resources. |
| region | An area that has one or more features in common. |
| economy | The system people use to produce goods and services. |
| specialization | The result of people making the goods they are best able to produce with the resources they have. |
| consumer | Someone who buys goods and services. |
| trade | The buying and selling of goods. |
| environment | The surroundings in which people, plants, and animals live. |
| erosion | The process by which water and wind wear away the land. |
| pollution | Anything that makes the soil, air, or water dirty and unhealthy. |
| ecosystem | A community of plants and animals, along with the surrounding soil, air, and water. |
