The Soil System

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Across
  1. 4. Sections of soil
  2. 6. The type of soil that is rich in clay
  3. 7. A fungi who's relationship with plant roots is symbiotic
  4. 8. Situated between the O and B horizon
  5. 10. The brownish type of soil
Down
  1. 1. The soil generally found in a boreal forest
  2. 2. The soil generally used for agriculture
  3. 3. The entrance of carbon dioxide into the forest system
  4. 5. Also known as the R Horizon
  5. 9. Is the horizon that is rich in minerals but poor in humus