Soil

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Across
  1. 2. All the vertical layers or horizons that make up a soil in a particular place
  2. 5. material formed from decaying leaves and other organic matter
  3. 8. the layer composed of mainly organic matter and is a thick layer of plant remains (leaves and twigs)
  4. 9. The loose, weathered material on Earth's surface in which plants can grow
  5. 11. the creation of flat areas on mountain slopes for the purpose of farming
  6. 12. these organisms help mix the organic matter in the topsoil
  7. 13. soil that has the smallest particles and holds water
  8. 15. The layer of soil that differs in properties (color and texture) from the layers above or below it.
Down
  1. 1. Horizon A which contains many minerals and humus
  2. 3. subsoil
  3. 4. Horizon C; partially weathered bedrock
  4. 6. Rich, fertile soil that is made up of about equal parts of clay, sand, and silt.
  5. 7. The management of soil to limit its destruction
  6. 10. The planting of different crops in a field each
  7. 14. the solid rock; horizon R
  8. 15. soil that has the largest particles and water runs through easily