Unit 8 Terminology

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Across
  1. 3. Water that flows up the mouth of a river with rising or in-flowing ocean tide
  2. 6. Following the level of the land around a hill
  3. 7. Planting of different crops in a given field every year or every several years
  4. 9. Sequence of living organisms that eat and are eaten by other organisms living in the community
  5. 10. Process of wearing away of soil
  6. 12. Water that flows from the land to oceans containing little or no salt
  7. 13. Large land area in which water from rain or melting snow is absorbed
  8. 15. Material placed on the soil surface to break the fall of raindrops, prevent weeds from growing
  9. 18. Soil or wall structure built across the slope to capture water and move it safely to areas where it is not likely to cause erosion
  10. 20. Addition of water to the land to supplement the water provided for crop production by rain or snow
  11. 21. Household use
  12. 22. Where water soaks down into the soil
  13. 23. Strip of grass growing in an area of field where flowing water tends to erode the soil surface
  14. 27. Severe soil loss that leaves trenches in the land surface
  15. 32. Water that drains out of soil after it has been wetted
  16. 33. Feeds wells and springs
  17. 34. Any material that supplies nutrients for plants
  18. 35. Plant material that remains when a plant dies or is harvested
  19. 36. Planting crops without plowing or disking the soil
  20. 38. Remove all foreign material
  21. 39. Alternating strips of row crops with strips of close-growing crops
  22. 40. Area with continuous, severe water shortages
  23. 41. Soil unit containing mostly clay, silt, adn sand particles held together by a gel-type substance formed by organic matter
  24. 42. Material that reduces the acid content of soil
Down
  1. 1. Dead plant and animal tissue
  2. 2. Moisture remaining in the soil available for plant roots
  3. 4. Plant to use land for its maximum production and water conservation without unacceptable damage to the land
  4. 5. Substance that dissolves or otherwise changes most other materials
  5. 8. Moisture from rain and snow
  6. 11. Located along the shoreline, where a natural harbor made it possible for ships to load and unload cargo
  7. 14. Layers of soil are removed from the land
  8. 16. Conducting all operation such as plowing, disking, planting, cultivating, and harvesting across a slope and on the level
  9. 17. Cycling of water among the water sources, atmosphere, and surface areas
  10. 19. Changing from a liquid to a vapor or gas
  11. 24. When water fills all the spaces or pores in the soil
  12. 25. Water-bearing rock formation supplying drinking water for the area that it underlies
  13. 26. Using techniques of soil preparation, planting, and cultivation that disturb the soil the least
  14. 28. Results when too much of a plant is eaten, reducing its ability to recover after grazing
  15. 29. Water that is drinkable and free from harmful microorganisms or chemicals
  16. 30. Amount and type of nutrients in the soil
  17. 31. Close-growing crop planted to temporarily protect the soil surface
  18. 37. Water held too tightly for plant roots to absorb