Soil Conservation

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Across
  1. 2. a loose mixture of small mineral fragments
  2. 3. the removal of substances that can be dissolved from rock
  3. 5. a chemical reaction in which an element combines with oxygen to form an oxide
  4. 8. the organic material formed in soil from the decayed remains of plants and animals
  5. 9. changes a steep hill into a series of smaller, flatter fields or steps
Down
  1. 1. the top layer of soil
  2. 4. water located within the rocks below the Earth's surface
  3. 6. the average weather condition in an area over a long period of time
  4. 7. the layer of rock beneath the soil
  5. 8. horizontal soil layers