Across
- 2. The protection and careful use of natural resources.
- 7. To process used materials so they can be used again.
- 8. The removal of large areas of trees from forests.
- 9. Able to continue for a long time without harming the environment.
- 10. Animals or plants that are at risk of disappearing forever.
Down
- 1. Power from sources that can be replaced naturally, like wind or sun.
- 3. Dirty, harmful substances in the air,water, or land.
- 4. The usual weather conditions of a region over a long time.
- 5. A community of living things interacting with their environment.
- 6. The gradual increase in Earth’s temperature.