Rachel's Crossword

1234567891011121314
Across
  1. 3. Animal waste.
  2. 4. When nitrogen leaves the atmosphere.
  3. 7. When a corpse gives its nitrogen to the atmosphere or the ground.
  4. 8. The combination of the sea and nitrogen.
  5. 10. Closest layer of the atmosphere to the earth.
  6. 11. The nitrogen that is in the atmosphere.
  7. 12. Precipitation
  8. 13. Burning.
  9. 14. The 3rd layer of the atmosphere
Down
  1. 1. Too much fertilizer.
  2. 2. The 4th layer of the atmosphere.
  3. 5. The height from sea level.
  4. 6. Breathing.
  5. 9. What turtles use to make their shells.