Environmental Science

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Across
  1. 2. water applied to land by human means
  2. 6. soil is carried away by rain or irrigation water
  3. 8. layered organic material that protects soil
  4. 9. preserving and protecting the natural environment
  5. 10. when moisture falls from the clouds
  6. 12. any organism that has a negative effect on health
  7. 14. readily avaliable and can be replaced
  8. 15. the ability to continue or maintain
  9. 16. can not be replaced
  10. 18. tilling activity drags soil downhill
  11. 21. planting different crops seasonally
  12. 24. erosion caused by high air velocity close to the ground
  13. 26. kills pests
Down
  1. 1. grass planted in areas of concentrated water flow
  2. 3. growth of crops in a nutrient solution
  3. 4. grown for protection and health of the soil
  4. 5. loss of fertile land
  5. 7. the level below which the ground is saturated with water
  6. 11. each of a series of flat areas made on a slope
  7. 13. contains little to no salt
  8. 17. erosion causes soil to lose this
  9. 19. when liquids turn to vapor
  10. 20. genetically modified organism
  11. 22. water erosion, poor surface draining
  12. 23. water erosion; direct rainfall
  13. 25. grown without fertilizers, hormones, or pesticides