Soils

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Across
  1. 2. made up of very small grain
  2. 4. loose material in which plants can grow in the upper layer of Earth
  3. 6. material found in nature that living things use
  4. 8. top layer of soil
  5. 9. planting strips of thick grass or clover between strips of crops
Down
  1. 1. rich soil with lots of humus
  2. 2. planting rows of crops around the sides of hills
  3. 3. saving resources by using them carefully
  4. 5. layer of rock beneath the soil
  5. 7. part of soil made up of decayed parts of once-living things