Agriculture

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Across
  1. 1. Substance added to soil increasing fertility
  2. 3. Grow a plant among different types
  3. 4. Equal layers of clay, silt, and soil
  4. 8. Process of eroding through natural elements
  5. 10. Cultivation of a single crop
  6. 11. Process that soil becomes saline
  7. 14. Different layers of soil
  8. 15. Open country used for grazing
Down
  1. 2. supply of water to crops for farming
  2. 5. Making sloping land from flat areas
  3. 6. Fertile land becomes a desert
  4. 7. Process of wearing down
  5. 9. Land that crops are grown
  6. 12. Solid rock underlying surface material
  7. 13. Line of trees to protect an area