Soil formation

Edit Answers
123456789101112131415
Across
  1. 2. , the structure of land forming into a hill.
  2. 4. , ash and lava contribute to soil nutrients
  3. 6. , deposited materials like sand, silt, and clay carried by wind or
  4. 8. , the breakdown of rocks through chemicals.
  5. 11. , soil that take an excruciating.
  6. 12. , the mixture of temperature that changes constantly.
  7. 13. , over times mineral particles combine from the basis of soil.
  8. 14. , make tunnels allowing air down into the soil
Down
  1. 1. , living creatures inside the ecosystem.
  2. 3. , breakdown of rocks without changing their chemical composition.
  3. 5. , organisms like plants that can break up matter.
  4. 7. , organic matter that consist dead remains of plant and animals.
  5. 9. , things that humans do that that causes her organisms to die
  6. 10. Soil micro-organisms, such as bacteria and fungi, break down organic matter to humus.
  7. 15. , are broken down physically and chemically by water, air, and temperature.