Unit 5 Agriculture Extra Credit

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Across
  1. 3. when eroded material is carried and dumped in a new location.
  2. 5. Unwanted organism that directly or indirectly interferes with human activities.
  3. 6. the ability to survive exposure to a particular pesticide
  4. 8. soil with an even amount of clay, silt and sand.
  5. 9. the spongy, fertile material formed by partial decomposition of organic matter.
  6. 13. Turning the soil to control weeds or pests
  7. 14. A decline in quality and productivity of soil.
  8. 15. Plowing perpendicular across a hill.
  9. 17. solid rock comprising the Earth’s crust.
  10. 18. pesticide that kills only the organism for which it was intended and not harm any other species
Down
  1. 1. Planting different crops in alternate bands.
  2. 2. Buildup of salt in the surface soil layers.
  3. 4. Level platforms cut into steep hillsides.
  4. 5. A chemical intended to kill insects and other organisms that damage crops.
  5. 7. Growing different crops from one year to the next.
  6. 9. each layer of soil
  7. 10. Rows of trees planted along edges of fields.
  8. 11. process that forms soil by breaking down rock and parent material.
  9. 12. the removal of materials from one place to another.
  10. 16. a pesticide that kills many different types of pests