| A | B |
|---|
| Factors that account for the variety of climates in both the United States and Canada include mountains, oceans, and the | distance from the Equator. |
| The largest prairie in the world lies in the | Central and Great Plains of North America. |
| A rain shadow is | on the dry, sheltered side of a mountain. |
| Two factors that influence the climate of the western United States are | the Pacific Ocean and mountains. |
| The Mississippi, Ohio, and Missouri rivers are important | shipping routes. |
| The United States produces and consumes | more fossil fuels than any other country. |
| Why is mining important to the economy of the United States? | These minerals are very important to other industries and have fueled the industrial expansion. |
| The Prairie Provinces and the St. Lawrence Lowlands are major | agricultural regions. |
| In 1947, for the first time in American history, a large tract of wilderness was permanently protected | not for its scenic value, but for the benefit of the unique diversity of life. |
| Florida Everglades are suffering from a barrage of pressures | brought on by non-native species of plants and animals. |
| A fertile topsoil left by a river, especially after a flood. | alluvial soil |
| Which province of Canada produces a large portion of the countries hydroelectricity? | Quebec Province |
| What fuels are formed over millions of years from plant and animal remains? | natural gas, petroleum, and coal |
| Major natural resources of north america include | fertile soil, water, energy and mineral resources, and forests. |
