Soil

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Across
  1. 3. Smallest soil particle
  2. 4. breaking down of large rocks into smaller pieces by action of natuarl forces
  3. 6. upermost layer of soil
  4. 7. dark brown in colour and consists of dead decaying remains of plants and animals
Down
  1. 1. seeping of water through soil
  2. 2. Know as farmers friends
  3. 5. A mixture of sand,silt and clay,it also has humus