APES unit 4

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Across
  1. 2. un-weathered bedrock
  2. 4. subsoil, tiny rock particles that leach down from topsoil
  3. 6. partially decomposed plant and animal matter
  4. 8. intermediate size , space, and retention
  5. 9. shows the layers of soil under the surface
  6. 10. smallest particle size, little space between
  7. 13. mass killing of rabbits because they were eating crops
  8. 15. dry soil and high wind lead to
  9. 16. physical breakdown of rock
  10. 17. and event caused by record drought, high wind
  11. 19. humus, non-decomposed plants matter
  12. 20. topsoil, organic matter mixed with rock particles
Down
  1. 1. parent material, undergone little weathering
  2. 3. a way to measure soil on the percentages of its contents
  3. 5. breakdown of rocks by changing their molecules
  4. 7. largest particle size, lots of space between
  5. 11. drought, deforestation, and poor farming lead to
  6. 12. each layer of soil is called a
  7. 14. loosens and mixes soil
  8. 18. ideal for farming