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Rain Barrel Quiz
by Staff
Rain barrels are great for water conservation. Test your knowledge on rain barrels with this rain barrel quiz at HowStuffWorks.

Which of the following statements is true?

  • There is evidence that collecting rainwater in cisterns was a common practice in the Middle East more than 4,000 years ago.
  • There is evidence that collecting rainwater in cisterns was a common practice in the Middle East more than 8,000 years ago.
  • There is evidence that collecting rainwater in cisterns was a common practice in the Middle East more than 6,000 years ago.

Which of the following locations offers monetary incentives for people to collect rainwater?

  • Germany
  • Japan
  • All of the above

What is the best way to describe rain water?

  • completely pure
  • relatively pure
  • toxic

What term is also referred to as "nature's distillation process"?

  • Condensation
  • Precipitation
  • Evaporation

Why is rainwater ideal for watering your plants?

  • It is usually hard water.
  • It is usually soft water.
  • It contains very high acidity levels.

One inch (2.54 centimeters) of rain falling on a 1,000 square foot (93 square meter) roof will yield how many gallons of water?

  • 200 gallons
  • 300 gallons
  • 600 gallons

Which of the following statements is true?

  • The average American household uses 15 percent of its total water for outdoor applications.
  • The average American household uses 30 percent of its total water for outdoor applications.
  • The average American household uses 50 percent of its total water for outdoor applications.

What roofing materials can contaminate water, making it unsafe to use?

  • asbestos shingles
  • tar and gravel
  • All of the above

What term is used to describe the recyclable water left over from showering, bathing or washing clothes?

  • gray water
  • green water
  • dirty water

Which of the following statements is true?

  • Even though rainwater is natural, it isn't safe for drinking unless it's been filtered and treated.
  • Rainwater is natural and is always safe for drinking.
  • Rainwater is natural and safe for drinking as long as it has not been sitting in the barrel for more than three days.