Soil

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Across
  1. 2. Decayed organic material that makes soil fertile.
  2. 4. A mixture of minerals, organic matter, water, and air where plants grow.
  3. 5. The uppermost layer of soil, rich in organic matter.
Down
  1. 1. The layer beneath the topsoil, containing fewer nutrients.
  2. 3. The solid rock layer beneath the soil.