How does your garden grow?

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Across
  1. 3. mixture of sand silt and clay
  2. 6. break down of dead plants and animals
  3. 7. the best type of soil to use for gardening
Down
  1. 1. this goes on top of the soil
  2. 2. biggest particle of soil
  3. 4. made up of air, minerals,organic matter and water
  4. 5. medium particle of soil