Across
- 3. Reduces the hardness of water
- 4. allows water to come out of the well and travel to buildings to be used
- 7. Taking used materials and making the usable again
- 8. An underground area where water collects between spaces in rocks
- 9. disinfects water
Down
- 1. water that has been used and is now contaminated
- 2. something that water come out of
- 5. Harmful and unsafe substances in water
- 6. Where water is stored and pumped from