SOIL

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Across
  1. 2. small mineral fragments, organic material, water, and air that can support the growth of vegetation
  2. 4. These areas get some water from under the ground, but when it evaporates it leaves behind salts that can kill plants.
  3. 7. the proportion of different-sized soil particles
  4. 9. breaks down (makes a mess)
  5. 12. a method to maintain the fertility of the soil by protecting the soil from erosion and nutrient loss
  6. 14. The heavy rain leaches nutrients from the topsoil. Crops can be grown year round because of the warm soil temperature, so plants are using nutrients from the soil year round.
  7. 15. beneath soil
  8. 16. TRANSPORTS soil (cleans up)
  9. 17. the removal of substance that can be dissolved from rock or layers of soil due to the passing of water
Down
  1. 1. the arrangement of soil particles
  2. 3. Frequent changes in temperature in this climate lead to frost action, which allows thick fertile soil to develop. The soils in this climate are some of the most productive in the world.
  3. 5. dark organic material formed in soil from the decayed remains of plants and animals
  4. 6. a soil conservation technique that prevents erosion of SLOPING HILLS by heavy rains
  5. 8. a soil conservation technique that helps RESTORE NUTRIENTS to the soil
  6. 10. A soil conservation technique that prevents erosion on STEEP HILLS by heavy rains.
  7. 11. source of all energy on Earth
  8. 13. low soil temperature and little rain causes soil to form slowly. Decomposition of plants and animals slows or stops and limits the amount of humus