Soil

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Across
  1. 4. Soft sticky soil
  2. 6. Soil organic matter
  3. 8. Put away
  4. 10. Plant root system
  5. 12. Planting different crops each year
  6. 13. conservation Preserving soil
  7. 14. Farmers' friend
  8. 15. Solid layer of rock under the earth's surface
  9. 16. A plant nutrient
  10. 18. Dark organic material in the soil
  11. 19. All living things depend on this
Down
  1. 1. When depleted soil becomes sand
  2. 2. Fungal
  3. 3. Cultivable
  4. 5. Top layer of soil
  5. 7. Another plant nutrient
  6. 9. Nitrogen-fixing bacteria
  7. 11. United Nations Convention to Combat Desertification
  8. 12. All life is this
  9. 17. Microscopic soil worms