Unit 5 Managing Renewable Resources & Food Systems

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Across
  1. 1. (three words) The largest amount of a resource that can be harvested without reducing future harvests.
  2. 3. (three words) An organism whose genetic material has been altered using genetic engineering techniques.
  3. 7. The removal of too much plant growth by grazing animals, leading to soil degradation.
  4. 10. The buildup of salts in soil, often as a result of irrigation, which can reduce soil fertility.
  5. 13. (three words) A pest control strategy that combines biological, physical, and chemical methods to minimize environmental impact.
  6. 14. A complex mixture of weathered rock, organic matter, water, and air that supports plant life.
  7. 15. (two words) The practice of alternating the types of crops grown in a field from season to season.
  8. 17. (two words) Large-scale farming that relies heavily on machinery, chemical fertilizers, pesticides, and fossil fuels.
  9. 19. The planting of different crops in mixed arrangements within the same field.
  10. 20. The process in which productive land becomes desert as a result of soil degradation.
Down
  1. 2. The removal of trees from forests faster than they can regrow.
  2. 4. (two words) A resource management approach in which managers scientifically test different management strategies in an area and then adjust their approach based on the results.
  3. 5. (two words) The practice of harvesting resources in ways that ensure they remain available for future generations.
  4. 6. (two words) The decline in soil quality caused by erosion, pollution, or other factors.
  5. 8. The artificial supply of water to land or crops.
  6. 9. (two words) A resource management approach that considers the entire ecosystem, including ecological processes and interactions, rather than focusing on a single resource.
  7. 11. A chemical substance used to kill or control pests.
  8. 12. (two words) A period beginning in the mid-1900s when high-yield crop varieties, fertilizers, pesticides, and irrigation greatly increased food production.
  9. 16. A timber harvesting method in which all trees in an area are cut down at once.
  10. 18. The large-scale planting of a single crop species.