| A | B |
| mountains | an area of land that rises far above sea level |
| rain forest | a very thick forest in an area where rainfall is very heavy all year long |
| glacier | a huge field of ice |
| erosion | the wearing away of land by wind, water, or glacial ice |
| plateaus | a high, flat area of land |
| climate | the kind of weather a place has over time |
| precipitation | moisture such as rain, snow and hail |
| desert | an area that gets very little rain |
| plains | a low, flat area of land |
| geography | study of earth and how we live on it |
| highlands | hilly land between flatland and mountains |
| renewable resources | something from nature that can be made again. Ex. trees and fish |
| resources | something used by people to meet their needs |
| nonrenewable resources | something from nature that cannot be made again. Ex. coal and oil |
| conservation | saving the Earth's resources such as water, forests, air and soil |
| pollution | dirtying of the air, water or soil |