Soil

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Across
  1. 3. trenches
  2. 6. decaying organic matter
  3. 7. a mixture of humus and tiny rocks
  4. 10. breaking something down by wind, water,or other natural agents
  5. 11. soil that forms on unconsolidated deposits moved by erosion
  6. 12. soil that forms on bedrock
Down
  1. 1. tiny streams
  2. 2. source of mineral matter in soil
  3. 4. a layer of soil that is different from the soil above it or below it
  4. 5. a type of soil that forms in temperate areas that receive more than 63 cm of rain this year
  5. 8. a type of soil found in dry areas that have grasses and brush vegetation
  6. 9. a type of soil that forms in hot, wet tropical areas
  7. 13. soil made up mostly of rock pieces