Puzzled about Hydrology

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Across
  1. 1. Examination - experiment
  2. 3. A series of events that are regularly repeated in the same order
  3. 4. A liquid
  4. 6. A body of water or air moving in a definite direction
  5. 8. contaminant of fertilizer
  6. 10. To cause to pass into solution
  7. 11. Made or produced by human beings
  8. 13. A colourless, odourless reactive gas
  9. 15. A detailed map of the surface features of land.
  10. 19. excess nutrients causes this
  11. 22. The quantity that can be or usually is carried at one time
  12. 28. ground cover provided by plants
  13. 30. A tool or implement
  14. 32. Chart - diagram
  15. 33. Move along or out steadily and continuously in a current
  16. 34. The upper layer of earth in which plants grow
Down
  1. 2. Location
  2. 3. river reed found in Canberra's water ways
  3. 5. Able to be reached or entered
  4. 7. A channel or pipe carrying off surplus liquid
  5. 9. To convert or change into a vapour
  6. 12. Measure of material's ability to conduct an electric current
  7. 14. A solid inorganic substance of natural occurrence
  8. 16. The interface between land and a river or stream
  9. 17. Contamination
  10. 18. Water that originates during precipitation events
  11. 20. The degree or intensity of heat present in a substance or object
  12. 21. study of water
  13. 23. contaminant of soap and detergents
  14. 24. dissolved salt content
  15. 25. Investigation
  16. 26. type of grass
  17. 27. separating solids from liquids
  18. 29. compounds found in the environment that plants and animals need to grow and survive.
  19. 31. Existing in or caused by nature