All about soil and plant agriculture -CG

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Across
  1. 2. natural process of rocks and minerals breaking down into smaller pieces by physical, chemical, or biological forces
  2. 6. Tiny roch particles that leach down from topsoil
  3. 10. Physical breakdown from wind, water, and temp. changes
  4. 12. Partially decomposed plant and animal matter.
  5. 13. same as plowing
  6. 15. best for agriculture needs
  7. 17. Organic matter mixed with weathered rock particles.
  8. 18. Rock that has undergone little weathering b/c its so deep underground.
  9. 19. Layer below topsoil
  10. 20. Smallest particle size
Down
  1. 1. Bedrock
  2. 3. Mixture of humus and rock particles.
  3. 4. little to no nutrients in this layer
  4. 5. The nature of rock is changed due to reactions with water, oxygen, etc.
  5. 7. A Horizon
  6. 8. Largest particles.
  7. 9. medium particle size
  8. 11. plant or animal, that can perform biological processes
  9. 14. C Horizon
  10. 16. non-decomposed plant matter.