Soils

Edit Answers
12345678910111213141516
Across
  1. 2. Mineral and organic surface of the earth capable of supporting plants.
  2. 5. Process of being supplied with air.
  3. 7. Layer of soil that has distinct characteristics.
  4. 9. Relative portions of sand, silt and clay.
  5. 10. soil consisting less than 52% sand, 28% silt, 7% clay.
  6. 13. Surface soils, rich in organic matter.
  7. 14. Substance in soil which changes the pH.
  8. 15. Process where rock minerals is worn away.
  9. 16. Unweathered hard rock that lies beneath the soil.
Down
  1. 1. Refers to having openings in the soil.
  2. 3. Material containing carbon, hydrogen oxygen and often nitrogen and sulfur.
  3. 4. material Horizon of weathered rock from which sediment were derived to form rocks.
  4. 6. Vertical section of soil.
  5. 8. Unit of soil structure such as an aggregate, block or granule formed by natural processes.
  6. 11. Process of separating a solid from a liquid.
  7. 12. Thin mixture of water and fine soluble materials.