Which of the following is NOT a water pollutant?

Which of the following is NOT a water pollutant?
 
  A) petroleum products
  B) ozone
  C) dioxins
  D) polychlorinated biphenyls (PCBs)

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All of the following are correct about acid rain EXCEPT
 
  A) it is created when sulfur dioxide combines with nitrogen oxide in the air.
  B) in the U.S., the West Coast has experienced the most damage.
  C) it can damage monuments.
  D) it is the result of burning fossil fuels.

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What percentage of the Earth's surface is covered by water?
 
  A) 25
  B) 50
  C) 75
  D) 95

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What is an energy vampire?
 
  A) a poorly insulated house that leaks home heat
  B) an electric appliance that uses lots of electricity
  C) a device that consumes electricity even when not in use
  D) a faulty electrical wiring system

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Most of our exposure to dioxins comes from
 
  A) the air.
  B) contaminated fruits and vegetables.
  C) home insulation materials.
  D) meat, dairy, and seafood.