SOIL

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Across
  1. 2. Single-celled microorganism.
  2. 3. An organism so small that it cannot be seen clearly without the use of a microscope.
  3. 4. Change in form, appearance, nature, or character.
  4. 6. Unweathered hard rock beneath the layers of soil.
  5. 8. The relative proportion in a soil of the various size groups of individual soil grains.
  6. 10. To move or transfer from one place to another; cause to change location; displace.
  7. 13. Slope of the land and the position on the landscape, such as the top of a hill, a hillside, or the foot of a slope.
  8. 14. Microscopic, wormlike, transparent organisms that can attack plant roots or stems to cause stunted or unhealthy growth.
  9. 15. Atmospheric action on rock surfaces producing decomposition, disintegration, or alteration of rocks at or close to the earth’s surface
Down
  1. 1. The addition of sediment, as by flowing water.
  2. 5. To gather or collect.
  3. 7. The horizon of weathered rock or partially weathered soil material from which the soil is formed.
  4. 9. An elongated depression between uplands, hills, or mountains.
  5. 11. A vertical section of a soil. The section, or face of an exposure made by a cut, may exhibit with depth a succession of separate layers.
  6. 12. Refers to the extent of voids or openings in the soil that exist between soil particles and soil peds or clods.