Across: | 1. | The process of cutting down or burning a forest. | 3. | In order to harness wind energy, you need to build a ____________. | 4. | The average weather patterns of a region. | 5. | Black liquid. Drawn from wells. Can be refined and turned into gasoline. | 6. | The release of harmful substances into the air or water is called ______________. | 8. | _____________ gases such as methane contribute to global warming. | 10. | ______________ dioxide is a gas often created by combustion. It contributes to global warming. | 12. | Black mineral. Dug from mines. Pollutes the air when burned. | 13. | Type of fuel. Refined from corn. Popular in the United States. |
| Down: | 1. | Manmade structure. Blocks a river. Used to harness hydroelectric power. | 2. | A ___________ resource is one that can be used more than once. | 5. | The _____________ layer of the atmosphere protects us from the sun's most harmful rays. | 6. | One way to help the environment is to ride _________ transportation, such as buses or trains, instead of driving your own car. | 7. | This land is very dry. Almost no plants or animals live here. The sun dictates the weather: Hot during the day. Cold during the night. This land results when topsoil and plants are lost due to drought or overuse by humans. | 9. | _____________ energy comes from the sun. | 11. | Don't throw that soda can away! You can ____________ it. |
|