Across
- 4. the process of removing salt from water
- 9. Disinfects water
- 10. underground freshwater reservoir
- 12. uses natural resources to clean wastewater
- 13. drinkable water
- 15. mass body of ice
- 18. disinfects water
- 19. Using Plants to clean environments
- 20. Gas and/or Oil
Down
- 1. the amount of salt in water
- 2. found in rural homes
- 3. reasonable management of resources
- 5. a fact
- 6. a liquid
- 7. Using life to clean enviornments
- 8. one-sided
- 11. water underground
- 14. little to no perciptaion
- 16. small localized climate
- 17. harmful chemicals for the environment