Across
- 3. How clean or polluted water is
- 4. A type of pollution that happens when harmful chemicals are added to water supplies
- 7. A type of pollution that happens when outdoor water heats up because of human activity
- 8. A type of pollution that comes from many small sources and is hard to track
- 11. A type of pollution that happens when live or dead organisms are added to the water supply
- 12. A body of rock or sediment that stores groundwater and allows it to flow
- 13. Water that we can't drink
Down
- 1. Water that we can drink
- 2. Water that has been used for flushing toilets, bathing or cleaning
- 5. When waste or material is added to water and makes it harmful
- 6. A type of pollution that comes from one identifiable source
- 9. When people move from the country to the cities, creating a greater demand for water
- 10. The availability of water