Across
- 4. Everything not made by people.
- 6. To teach.
- 7. An accident that causes a lot of damage.
- 8. Someone who knows a lot about nature.
- 10. Rules everyone has to follow always.
Down
- 1. To keep safe.
- 2. To guard nature.
- 3. Where land meets the sea.
- 5. Watching over an area.
- 9. Synonym of protect.