Among the following items, the largest single source of radiation in the environment is
A) fallout.
B) cosmic rays.
C) medical diagnosis.
D) radon.
E) nuclear power plants.

Question

Quizplus · Accepted Answer

Radon is a naturally occurring radioactive gas that is the largest single source of radiation exposure to the general public, primarily from the decay of uranium in soil and rocks.

Among the Following Items, the Largest Single Source of Radiation