APEs Exam review

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Across
  1. 3. gov’t mandated fuel efficiency
  2. 6. species presence/absence indicates health
  3. 7. water get more nutrients, algae growth
  4. 9. fuel that is made from plant material
  5. 10. groundwater underground of permeable rock
  6. 12. burn a managed fire set intentionally
  7. 15. organism whose genetic material has been altered
  8. 17. thrive in wide variety of environments
  9. 19. careful use of natural resources by humans.
Down
  1. 1. wet one side dry another
  2. 2. disease restricted to a particular locale
  3. 4. outer shell of the earth
  4. 5. organic component of soil
  5. 8. the production of food by growing plants
  6. 11. conversion of wasteland into land suitable
  7. 13. the incidental catch of unwanted fish/species
  8. 14. a loss when drought degrade topsoil
  9. 15. Revolution shift in agriculture practices
  10. 16. time 70 ÷ growth rate
  11. 18. weak trade winds in Pacific, warmer waters