12.1 Soil and Agriculture

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Across
  1. 2. The process by which material, such as topsoil, is moved from one place to another
  2. 4. Physical and chemical breaking of rocks and minerals into smaller pieces
  3. 5. Breakdown of waste, organisms, and organic material into simple molecules
  4. 8. the part of the horizon that has the most plant nutrients available
  5. 9. a natural breakup of rock without a chemical change.
Down
  1. 1. A cross-section of all the soil horizons in a specific soil, from surface to bedrock soilhorizons distinct layers of soil
  2. 3. are distinct layers of soil
  3. 6. when water and other substances chemically break down parent material and rocks, transforming them into different materials
  4. 7. is made up of minerals, organic matter, air, and water.