Chapter 2 G

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Across
  1. 1. mass of groups of soil and roots
  2. 5. Soil that differs in colorand textures from the oter layers
  3. 6. Weathered material on earths surface
  4. 9. Managment to protect the soil
  5. 12. ___ ____ is the layer of soil that has clay, humus, and other materials
  6. 13. organic material in soil
  7. 16. Physiclly broken down
  8. 19. a type of soil that is rich and fertile
  9. 21. Breaking down rocks, minirals, ect
  10. 22. plowing areas to prevent lose of soil
  11. 24. ______ is mixed with iron to make the color
  12. 25. ____ _____ is the area of the Great Plains where wind erosion caused a loss of soil duringt he 1930's
  13. 26. Lines of same elevation
  14. 28. Grinding away by rock particals
Down
  1. 1. layer beneath the top soil
  2. 2. breaks down the remains of organisms and oter things
  3. 3. Different crops planted ina field each year to mantain the soils fertility
  4. 4. loose layer of dead plants, and ect on the top of the soil
  5. 7. _____ ______ is the process wich ice is in a rock creating a depper crack
  6. 8. Dead stalks from the pervious year's crops are left in the ground to hold the soil in place
  7. 10. Uses contor lines
  8. 11. anything the enviornment that humans can use
  9. 14. how well soil supports plant groth
  10. 15. This princible states that the same process that operated in the past operats today
  11. 17. Chemically Broken down
  12. 18. difference in line elevation
  13. 20. _____ _____ is a marking of the number on a contor line
  14. 23. the rock beneath soil
  15. 27. The removal of particals by wind, water, ice, and gravity