Across
- 9. Liquid to gas
- 10. Category of pollution that is easily identifiable
- 12. Gas to a liquid
- 14. How water moves on land
- 15. Rain, snow, sleet
Down
- 1. liquid to gas through plants
- 2. Water seeping into the ground
- 3. introduction of a harmful substance into an ecosystem
- 4. Category of pollution that comes from many different places
- 5. H20 moving through earth's systems via many different paths
- 6. How water moves below the surface
- 7. Another name for groundwater
- 8. stores of water found beneath the surface
- 11. Something that can be used by humans
- 13. Solid to gas