Green Plumbing - Question List

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51. How accurate is the term “the greenhouse effect” as related to actual greenhouses?
  1. Completely accurate
  2. Fairly accurate
  3. Slightly accurate
  4. Not at all accurate
52. Which of the following is the most prevalent greenhouse gas in Earth’s atmosphere?
  1. Carbon dioxide
  2. Methane
  3. Nitrous oxide
  4. Water vapor
53. All of the following are greenhouse gases, except:
  1. Argon
  2. Chlorofluorocarbons
  3. Nitrous oxide
  4. Ozone
54. What is the ratio of carbon dioxide (CO2) produced annually by the following (in order): conventional electric, conventional gas, and tankless gas water heaters?
  1. 5-5-2
  2. 2-5-8
  3. 8-2-1
  4. 20-15-2
55. Which type of household plumbing fixture allows the “cleanest” read on the greenhouse effect from household water use?
  1. Toilets
  2. Clothes washers
  3. Water heaters
  4. Dishwashers

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