| A | B |
| geography | The study of Earth and the way people live on it and use it. |
| acid rain | destroys trees, pollutes soil, pollutes rivers and streams |
| region | landforms, climate, urban areas vs. farmlands define each ____________ |
| The West | Has the Rocky Mountains; the Continental Divide is located here |
| Continental Divide | an imaginary line in the Rockies; rivers to West flow into Pacific, rivers to east flow into Atlantic |
| The Southwest | The Grand Canyon and the Colorado River are located in ___________________ |
| The Middle West | the breadbasket of the U.S.; Corn Belt is found here |
| The Southeast | The Mississippi river and its rich lands are part of this region |
| The Northeast | This region includes Boswash, a megalopolis |
| landform | a shape on Earth's surface |
| megalopolis | a group of cities that have grown so close together that they seem to form one city |
| Boswash | major cities from Boston to Washington, D.C. |
| interdependent | depending on each other to meet needs and wants |
| climate | the weather an area has over a long period of time |
| temperature | the measure of hot and cold |
| precipitation | the moisture that falls to Earth: rain or snow |
| Arid America | located in both the West and Southwest regions; gets less than 20 inches of precipitaion each year |
| Humid America | found west of Atlantic Ocean, east of Great Plains; gets more than 20 inches of precipitation each year |
| natural resources | materials found in nature that people use to meet their wants and needs |
| renewable | _______________ resources that can be replaced ex. forests |
| nonrenewable | _______________ resources that cannot be replaced ex. coal, oil |
| mineral | a substance found in the earth that is neither plant or animal |
| fossil fuel | fuels formed millions of years ago from the remains of plants and animals |
| pollution | something that makes our air, water, and soil dirty |
| acid rain | chemicals mixed in with moisture |
| economy | the way people use natural resources, money, and knowledge to produce goods and services |
| conservaton | protection and careful use of natural resources |
| recycling | using something again |
| latitude | imaginary lines that run east to west drawn on maps and globes |
| parallels | another term for latitude lines |
| longitude | imaginary lines that run north to south drawn on maps and globes |
| meridians | another term for longitude lines |
| prime meridian | the line of longitude labeled 0 degrees |
| equator | the latitude line labeled 0 degrees |
| grid | set of criss crossing lines used to find places on a map |
| environment | ________ is made up of all the surroundings of which people, plants, and animals live |
| trees | keep temperature from getting too hot, provide fresh air, keep soil from washing away |
| region | a large area that has common features that set it apart from other areas |