Across
- 1. A surface that does not allow water to infiltrate
- 3. The unit used to measure discharge
- 7. A river floods when it exceeds ______ discharge
- 8. The low-lying flat land next to the river channel
- 9. Generated through hydroelectric dams built across rivers
- 11. ____ water is clean enough for human consumption
- 13. Wearing down of rocks
- 14. A small stream that feeds into the main river channel
- 15. When water travels vertically down the soil profile
Down
- 2. A natural storage of water in the soil profile
- 4. Sediments found in rivers
- 5. Dissolving of rock components by water
- 6. Precipitation in a solid state
- 9. The adding of waste or contaminants to an environment
- 10. Round holes on a river bed left by eroding pebbles
- 12. A common recreational use of rivers