| A | B |
|---|
| prairie | flat area covered with tall grasses and wildflowers |
| livestock | farm animals such as cattle, pigs, and chickens |
| scale | relationship between the distance shown on a map and the real distance |
| lake effect | contributes to the gentler climate in some parts of the Middle West |
| drought | period of little or no rain |
| iron | steel is made form this metal |
| ore | rock that contains iron |
| open-pit mining | method using huge power shovels to dig out ore |
| reclamation | restoring the land after mining occurs |
| skyscrapers | very high buildings |
| marsh | swampy wetland |
| pesticide | chemicals that kill insects that destroy crops |
