| A | B |
|---|
| conservation | careful management and wise use of natural resources |
| preservation | protecting an area of land or water |
| reclamation | repair of some damage done to an ecosystem |
| succession | the process that gradually changes an existing ecosystem into another ecosystem |
| redesign | to make something in a new way to use less material |
| Nutrients are added to the soil when the bodies of dead animals _____. | decompose |
| Forests provide a ____ for many animals. | habitat |
| Forests are a valuable _____. | resource |
| Forests release ____ into the air. | oxygen |
| ways to preserve resources | protect areas such as national parks; pass laws; enforce laws |
| ways to conserve resources | reduce reuse, recycle and redesign |
| things that help repair ecosystems | fish ladders, mine reclamation, and adding to ecosystems such as coral reefs |
| damage that humans cause to an ecosystem | using chemicals and clear-cutting forests |
| things that cause rapid changes to an ecosystem | thunderstorms, tornadoes, hurricanes, volcanoes, and forest fires |
| things that cause slow changes to an ecosystem | erosion, climate changes, and succession |
