watershed and human impact

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Across
  1. 4. water filtering through a porous material
  2. 5. creates natural pressure
  3. 11. replenished by precipitation
  4. 12. withdrawing groundwater causing the land to sink
  5. 13. more prone to water pollution than ground water
  6. 15. moves slowly through aquifers
  7. 19. region between the earth's surface and the water table
  8. 20. area of groundwater affected by contamination
  9. 21. largest source of agricultural pollution
  10. 22. dissolved salt
  11. 23. way that surface water is replenished
Down
  1. 1. largest use of groundwater
  2. 2. release of liquid petroleum into the water
  3. 3. can move depending on rainfall
  4. 6. makes up 3% of Earth's water resources
  5. 7. a resource that can be used repeatedly
  6. 8. sediments that transmit groundwater freely
  7. 9. contamination of bodies of water
  8. 10. spaces through out a rock layer
  9. 14. made of gravel, sandstone, or limestone
  10. 16. region where pore spaces are filled with water
  11. 17. an example is a stream, channel, reservoir, or bay
  12. 18. another name for the water cycle