Environmental Systems Crossword Puzzle

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Across
  1. 3. processes
  2. 5. replenishment
  3. 6. water
  4. 9. water
  5. 13. of water supplyPublic drinking
  6. 14. water water that collects on the ground Human drinking water
  7. 16. processes Aquifer
  8. 17. use
  9. 19. water supply
  10. 20. rises to the surface
  11. 21. of flowing water
  12. 22. to another stream of water
Down
  1. 1. that water is clean and safe
  2. 2. where water collects
  3. 4. by land
  4. 7. waterSafe to drink
  5. 8. purification and filtration process
  6. 10. for:
  7. 11. to grow crops
  8. 12. restorationProtects the health of the public
  9. 15. a limited supply
  10. 18. irrigation