To reduce your exposure to ionizing radiation, your best defense is to limit your contact with which ...

To reduce your exposure to ionizing radiation, your best defense is to limit your contact with which of the following devices?
 
  A) microwave ovens
  B) AM/FM radios
  C) fluorescent light bulbs
  D) X-ray machines

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Health risks of tanning include increased risk of
 
  A) skin cancer.
  B) first-degree burns.
  C) cataracts.
  D) hair loss.

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Old paint may contain toxic levels of
 
  A) mercury.
  B) lead.
  C) asbestos.
  D) formaldehyde.

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The unit of measurement used to measure sound intensity is the
 
  A) watt.
  B) hertz.
  C) decibel.
  D) ampere.

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What pollutant poses an especially serious risk of developmental delay and brain damage in young children?
 
  A) mercury
  B) dioxin
  C) lead
  D) PCB