Unit 3.1 – Answers

  1. Answer: C. The North Central Region leads the nation in total corn-grain ethanol production.
  2. Answer: D. All actions could threaten water quality or quantity
  3. Answer: C. 2.4%
  4. Answer: B.  production and cultivation
  5. Answer: D.  water held as soil moisture
  6. Answer: B. Mixed stands of trees should have the greatest infiltration rate.
  7. Answer: F. Little large-scale research has been done and profit is unknown
  8. Answer: E.  All of the above.
  9. Answer: B. False. Biotechnology is an important tool, but management and other appropriate technologies are needed.
  10. Answer: C. Consumptive use varies with irrigation practices, facility efficiency and other factors.