Across
- 5. Low area of land between hills and mountains.
- 8. Too many people in one area
- 10. A cascade with water falling from it
- 12. A state of little money
Down
- 1. A substance harmful to the environment
- 2. May types of something
- 3. Lacking liquid or moisture
- 4. An invisible line in the middle of the Earth
- 6. Hot and ---
- 7. A region with mountains
- 9. A steep rock face
- 11. A ---- rainforest