Soil Crossword

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Across
  1. 3. the preparation of land for growing crops
  2. 4. decline in soil condition
  3. 6. permanent covering of the soil surface with impermeable artificial materials
  4. 7. increase in water-soluble salts in soil
  5. 9. topsoil removed by wind, water, and tillage
  6. 10. increase in soil density and decrease in porosity that impairs soil function
Down
  1. 1. lowering of the soil pH by buildup of acids and leaching of bases
  2. 2. the layer below topsoil composed of a much lower concentration of organic matter
  3. 5. the upper, outermost layer of soil typically containing the highest concentration of organic matter
  4. 8. loss of soluble substances from the soil by solvent