Across
- 6. Clearing of forests on a large scale, usually for commercial purposes.
- 7. Process of converting waste materials into reusable materials.
- 9. Contamination of the environment with harmful substances.
- 10. Energy derived from the sun's radiation.
Down
- 1. Element found in all living organisms and in many nonliving substances.
- 2. Preservation and protection of natural resources.
- 3. Energy derived from sources that are naturally replenished.
- 4. Variety of life forms in a specific habitat or ecosystem.
- 5. Material that is not wanted and discarded.
- 8. Community of organisms interacting with each other and their environment.