Soil, Human Impact, and Conservation

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Across
  1. 3. a loose mixture of small rocks,organic matter,water,and air
  2. 5. protecting land from being damaged or changed
  3. 6. the growth of urban areas caused by people moving into cities
  4. 8. different physical properties of each soil layer
  5. 11. the process by which damaged land areas is returned to it original condition
  6. 12. the process by which wind, water, or gravity transports soil and sediment from one place to another
  7. 15. the process of planting trees to reestablish forestland
  8. 16. the process by which human activity and natural processes damage land to the point that it can no longer support the ecosystem
  9. 17. when urbanization occurs at the edge of a city or town
  10. 19. the removal of trees and other vegetation from an area
Down
  1. 1. the remains of decayed organic matter
  2. 2. areas we live in
  3. 4. a verticle section of soil that shows all the different layers
  4. 7. land to grow crops and raise livestock
  5. 9. when severe drought hit the Souther Great Plains in 1931 top soil dried out, winds lifted the soil, and carried it across the plains
  6. 10. the wise use of natural resources
  7. 13. places that humans have left alone
  8. 14. the process by which land becomes more desertlike and unable to suppot life
  9. 18. the careful and responsible managementof a resource