Physics, 13.10.2019 07:01 whitethunder05

Which of the following statements is true?
a. you are exposed to nuclear radiation every day.
b. most of the nuclear radiation you are exposed to in the environment is man-made.
c. naturally occurring nuclear radiation is called background decay.
d. all natural radiation is at a level low enough to be safe.

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Which of the following statements is true?
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