Cosmic radiation is proportional to altitude---the higher the altitude, the intenser the radiation is.And the more radiation one is exposed to, the higher the chance for him/her to get a cancer.

 
  • 宇宙辐射随着高度增加而增加,离地球越远,受粒子的辐射越强,因此接受这种辐射最多,致癌危险越大。
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