Across
- 2. to put waste at the wrong place
- 3. a substance that has been linked to causing one or more types of cancer
- 6. the protection and preservation of natural environments and resources
- 7. the complex system of relationships between living things and their environment
- 12. carrying harmful bacteria or toxins that can cause disease or death
- 13. the contamination of the environment
- 15. a person who protects the natural world and educates others about environmental problems
- 16. no longer existing
Down
- 1. to use less or make something smaller
- 4. the planting of trees and plants to help a damaged or destroyed forest recover
- 5. to use more than necessary
- 8. deadly or poisonous
- 9. to share a car instead of driving one alone
- 10. the place in which a species normally lives
- 11. to make something new from materials that have been used before
- 14. to keep something in its original state
