Unit 3.3 – Answers

  1. Answer: B. nearly 12 billion gallons
  2. Answer: B. cooling tower
  3. Answer: B. False. It varies, but estimates are around 3.0 gallons water per gallon of ethanol produced.
  4. Answer: C. Water is recycled and reused in a production facility, but some portion is lost to evaporation and discharge; this lost portion is the consumptive use
  5. Answer: A, B, C, and D. All of these apply.
  6. Answer: B. water consumed to grow the feedstock
  7. Answer: A. rain water
  8. Answer: A.  69 to 201 gallons of water per gallon of ethanol
  9. Answer: B. Kansas
  10. Answer: A and B.