in Jobs & Employment by (257k points)

Question: Just under half of man’s exposure to external natural radiation comes from?

Options:

  1.  Radon
  2.  Cosmic radiation
  3.  Rocks
  4.  Food

Please log in or register to answer this question.

1 Answer

0 votes
by (973k points)
selected by
 
Best answer

2. Cosmic radiation

Just under half of man’s exposure to external natural radiation comes from Cosmic radiation.

Related questions

...