Across
- 1. the ease liquids move through a material.
- 4. the process of rocks changing
- 10. pollution in water
- 12. pollution that comes from multiple different sources.
- 13. highest point in aquifer
- 14. water that is underground
Down
- 2. when water leaves the aquifer
- 3. pollution from one source
- 5. when water goes into the aquifer
- 6. the study of groundwater
- 7. the process of cleaning water
- 8. a hole in the ground
- 9. the positive benefits that an ecosystem provides to people
- 11. the space between particles
- 15. an underground layer of rock, sand, and gravel that holds groundwater