Soil labs

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Across
  1. 1. what is the structure of silica
  2. 5. over 80% of the earth's ________is made up of oxygen and silicon
  3. 7. what does som stand for
  4. 9. a vital heterogenous mix vital for the earth
  5. 11. what kind of plants replace nutrients
  6. 12. bacteria and fungi convert organic matter into a what kind of mixture
  7. 13. salinization reduces plant __________
  8. 14. what does inorganic material contain most of
  9. 15. released along with nitrogen during the process of mineralization
Down
  1. 2. overuse of nitrate and phosphate fertilizers can lead to this
  2. 3. the largest component of soil
  3. 4. these get absorbed from the soil by plant roots
  4. 6. soil is a _______ mix
  5. 7. this is the accumulation of water soluble ions or salts in soil
  6. 8. process of breaking down a substance to release nitrogen
  7. 10. what contains about half it's mass as carbon and five percent as nitrogen