AHill Plant Agriculture Vocab Crossword

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Across
  1. 4. Molecular nature of rock is changed due to reactions with water, oxygen, etc.
  2. 6. In 1929, the Great Depression made record low prices of this crop.
  3. 10. Classifies soil based on the relative amounts of each particle.
  4. 11. Bedrock. Unweathered, solid rock.
  5. 14. _______ Prairies that are semi-arid grasslands.
  6. 16. What is the B Horizon?
  7. 17. plants gather energy by absorbing _______.
  8. 19. Ideal for farming. Moderate water retention and percolation rate.
Down
  1. 1. Greatest ecological disaster in US history.
  2. 2. Physical breakdown of rock by wind, water, cold, and heat.
  3. 3. Which biome is best for farming?
  4. 5. The severe erosion was caused by the loss of native _____ _____.
  5. 7. Parent material. Rock that has undergone little weathering.
  6. 8. Very shallow O and A horizons due to rapid plant growth and leaching.
  7. 9. Bad for farming, heavy leaching of nutrients and soil drying to to percolation rate.
  8. 12. Plants obtain water from _____.
  9. 13. Loosens and mixes soils, increasing water percolation and mixing O-Horizon humus into the topsoil.
  10. 15. The topsoil.
  11. 16. Intermediate size, space, and retention in topsoil.
  12. 18. Partially decomposed plant and animal matter.