AFNR Unit 4.1 Key Terms

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Across
  1. 2. Mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable quantities in nature.
  2. 8. An elongated depression between uplands, hills, or mountains.
  3. 11. Accumulation of water-worn pebbles larger than two millimeters in diameter
  4. 12. Refers to the extent of voids or openings in the soil that exist between soil particles and soil peds or clods. These pores hold water and air for absorption by plant roots.
  5. 13. The artificial application of water to soil for the purpose of increasing plant production.
  6. 17. To move or transfer from one place to another; cause to change location; displace
  7. 18. The removal of soluble constituents from soils or other materials by percolating water.
  8. 19. The group of processes whereby earthy or rock material is worn away, loosened, or dissolved and removed from any part of the earth’s surface.
  9. 20. A group of textural classes in which the particles are finer than gravel but coarser than silt, ranging in size from 2.00 to 0.5 millimeters in diameter.
Down
  1. 1. To gather or collect.
  2. 3. An organism so small that it cannot be seen clearly without the use of a microscope; a microscopic or submicroscopic organism.
  3. 4. The addition of sediment, as by flowing water
  4. 5. A size term denoting particles, regardless of mineral composition, with diameter less than 2 microns.
  5. 6. Change in form, appearance, nature, or character.
  6. 7. Matter found in, or produced by, living animals and plants, which contains carbon, hydrogen, oxygen, and often nitrogen and sulfur.
  7. 9. The long-term average weather conditions.
  8. 10. The mineral and organic surface of the earth capable of supporting upland plants. It has been (and is being) formed by the active factors of climate and biosphere exerting their influence on passive parent material and topography over neutral time.
  9. 14. Unweathered hard rock that lies directly beneath the soil layers or beneath superficial geological deposits, such as glacial drift.
  10. 15. 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.
  11. 16. Small, mineral, soil particle, ranging in diameter from 0.5 to 0.002 millimeters.