| A | B |
|---|
| contiguous | Next to each other |
| region | an area in which many features are simlar |
| relative location | the position of one place compared to that of other places |
| continent | One of Earth's seven largest landmasses |
| population | the number of people who live in an area |
| landform region | a region that has similar landforms throughout |
| climate | the kind of weather a place has over a long time |
| moutain range | a group of connected moutains |
| erosion | The gradual wearing away of the Earth's surface |
| prairie | An area of flat or rolling land covered mostly by grasses |
| environment | the surroundings in which people, plantsl, and animals live |
| inlet | any area of water extending into the land from a large body of water |
| gulf | a large inlet |
| sound | a long inlet that separates offshore islands from the mainland |
| tributary | a stream or river that flows into a larger stream or river |
| river system | A river and its tributaries |
| drainage basin | The land drianed by a river system |
| Fall line | A place where the land drops sharply, causing rivers to form waterfalls or rapids |
| elevation | the hight of land in relation to sea level |
| natural vegetation | The plant life that grows naturally in a place |
| Arid | Dry |
| tundra | A cold, dry region where trees cannot grow |
| land use | How land is used |
| naturural resource | something found in nature that people can use |
| renewable resource | resource that can be made again by people or nature |
| nonrenewable resource | resource that cannot be made again by people, or resources that would take thousands of years for nature to replace |
| modify | to change |
| irrigation | the use of canals, ditches, or pipes to move water |
| efficiency | using less energy to do the same tasks |
