Across
- 3. beaches
- 7. different
- 9. saltwater
- 10. air
- 11. thriving
- 14. area
- 16. rock
- 17. alive
- 20. dead
- 23. live
- 25. fresh
- 27. landform
- 28. maintenance
- 30. energy
- 31. upper
- 32. calcium
Down
- 1. diversity
- 2. process
- 4. system
- 5. water
- 6. production
- 8. availability
- 12. water
- 13. leveling
- 15. living
- 18. relationship
- 19. competing
- 21. hunting
- 22. outer
- 24. balance
- 26. eater
- 29. air