| A | B |
|---|
| geography | the study of the world and its features |
| landform | a physical feature of the earth's surface, such as a mountain |
| plateau | a high, steep-sided area that rises above the nearby land |
| climate | the type of weather in a place over a long period of time |
| equator | the imaginary line dividing the Northern and Southern Hemispheres |
| capital resource | a tool, machine, or building people use to produce goods and services |
| human resources | a person and the skills and knowledge he or she brings to the job |
| scarcity | a lack of something |
| opportunity cost | the most important thing that people give up so they can have or do something else |
| conservation | the protection and careful use of natural resources |
| region | an area with certain characteristics that set it apart from surrounding areas |
| economy | the system peoplr 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 | a person who spends money on goods and services |
| trade | buying or selling goods |
| environment | the things that surround someone, including water and land |
| erosion | the process by which water and wind wear away the land |
| pollution | harmful materials that damage or contaminate air, water, or soil |
| ecosystem | a community of animals and plants interacting with their environment |
