Cycles in Ecology

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Across
  1. 2. desalination by means of applying pressure to salt water through a semi-permeable membrane and pushing potable water through the other side
  2. 3. examples of this are rain, snow, hailstones
  3. 8. desalination by means of evaporating water and then condensing it, leaving salt in the flask
  4. 10. death or excretion by plants/ animals produces this type of nitrogen
  5. 12. process by which nitrogen gas is converted to nitrates
  6. 14. process by which plants release water vapour
  7. 16. nitrates are converted to nitrogen gas by this type of bacteria
  8. 17. the form of carbon found in the atmosphere
  9. 18. the type of bacteria that is associated with ammonia
  10. 19. what dead plants/animals form after death, when not decomposed by microorganisms
Down
  1. 1. describes the burning of fossil fuels
  2. 4. a practice in farming which allows replenishment of nutrients in soil, by the production of nitrates by bacteria in legume roots
  3. 5. the removal of salt from water
  4. 6. farmers apply this nitrate to soil for better plant growth
  5. 7. describes clean, drinking water
  6. 9. the process in which plants use up the CO2 in the atmosphere (also how animals release the CO2)
  7. 11. nitrifying bacteria converts ammonia into this type of nitrogen
  8. 13. the second stage of the water cycle
  9. 15. the only form of nitrogen that can be used by plants