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Question: On average, approximately 82 percent of our everyday radiation exposure comes from what sources?

Options:

  1.  Uranium
  2.  Radon
  3.  Natural
  4.  Extra-terrestrial

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3. Natural

On average, approximately 82 percent of our everyday radiation exposure comes from Natural sources.


Explanation:

Most of our radiation exposure comes from everyday sources that aren't considered harmful. This type of radiation comes from natural and artificial sources. Over 80% of it comes from natural sources.

In natural sources, cosmic radiation cause much of our exposure. Most of our daily exposure to radiation from artificial sources is due to x-rays.

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