Nitrogen Cycle

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Across
  1. 4. dirt
  2. 5. FIXATION
  3. 7. Dead things "Rot" or...
  4. 8. reducing nitrate to gaseous forms of nitrogen
  5. 9. Comes before the thunder
  6. 10. rocks and mountains
Down
  1. 1. converting nitrogen to inorganic nitrogen
  2. 2. compounds of nitrogen and oxygen, NO3 atmosphere layers of gases surrounding the planet
  3. 3. ACIDS
  4. 5. FIXING BATERIA
  5. 6. a small rounded lump of a mineral