krisgrace2242 krisgrace2242
  • 21-10-2017
  • Social Studies
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For most people living in developed countries, their greatest exposure to radiation is from

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Greenleafable
Greenleafable Greenleafable
  • 30-10-2017
For most people living in developed countries, their greatest exposure to radiation is from the natural environment.
Our planet is also a source of radiation - it's not only due to human interference. There are some radioactive materials, such as radium, thorium, uranium, etc. which are natural constituents of rock and soil. So we are constantly exposed to radiation, although in very low amounts. 
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