| A | B |
|---|
| history | the study of past events and people |
| geography | the study of the earth and how people us it |
| metropolitan area | an area made up of a large city and surrounding towns and communities |
| natural resources | things such as coal, water, or farmable land that are provided by nature and are useful to people |
| region | an area with one or more common characteristics that make it different from surrounding areas |
| climate | the pattern of weather that a placehas over a period of years |
| plain | a wide area of flat or gently rolling land |
| elevation | the hieght of land above sea level |
| sediment | matter that settles to the bottom of a liquid |
| national park | an area of scenic beauty maintained by the federal government for the public to visit |
| basin | a wide, deep area bounded by higher elevation |
| conservation | the care, protection, or management of natural resources |
| nonrenewable resource | a resource of which there is a limited supply |
| fossil fuel | a nonrenewable energy source found underground |
| interstate highway | one of the network of highways connecting the regions of the United States |
| ecosystem | a group of plants and animals and their environment |
| geyser | a hot spring that shoots steam |
