Biogeochemical cycle

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Across
  1. 2. water released to ground
  2. 3. Nitrogen into ammonia
  3. 6. water flows over land
  4. 8. 78% of earth atmosphere
  5. 11. breathing
  6. 12. Plants get nitrogen in this
  7. 15. liquid to gas
  8. 16. (Nh4)
  9. 17. (Co2)
Down
  1. 1. changing into liquid or solid
  2. 4. (No3)
  3. 5. plants release water with
  4. 7. Nitrates get broken down
  5. 9. (NH4) into (NO2)
  6. 10. decomposed organics
  7. 13. (h20)
  8. 14. (Nh3)