Soil

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Across
  1. 2. Decreases soil fertility, which can negatively affect crop yields.
  2. 5. The practice of cultivating the soil, growing crops, and raising livestock.
  3. 7. The introduction of harmful or poisonous substances .
  4. 9. The process of extracting  useful minerals or materials from the surface of the earth.
  5. 10. The process of converting waste materials into new materials and objects.
Down
  1. 1. The act or process of building structure.
  2. 3. The action of clearing a wide area of trees.
  3. 4. The act or process of working the ground, planting seeds, and growing edible plants.
  4. 6. The material on the surface of the earth that provide nutrients for plant growth.
  5. 8. Toxins that can develop diseases.