Sustainable agriculture

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Across
  1. 3. assemblage of plant species and the ground cover they provide
  2. 5. to find and drive game toward hunters
  3. 6. rules that govern the emission of air pollutants
  4. 8. energy from naturally replenishable sources that don't run out
  5. 12. Serving or intended to regulate something
  6. 13. collect manurer and convert it into usable energy
  7. 15. move from one region to another
  8. 16. of indigenous origin or growth
  9. 17. maintain or support
Down
  1. 1. process of liquid turning into gas
  2. 2. dried out, exteremly thirsty
  3. 4. instensive grazing for extended periods of timecausingg damage to grassland
  4. 7. an animal that preys on others
  5. 9. the production and discharvegetationthing
  6. 10. Gasses in the earths atmosphere that trap heat
  7. 11. lack of rain for an extended period
  8. 14. relating to a particular society