Radon is
A) the radioactive substance that will probably be used to irradiate and sterilize food.
B) the main component in the radioactive fallout from nuclear weapons and nuclear power plant accidents.
C) a type of electromagnetic radiation that is produced by the sun and partially penetrates Earth's atmosphere.
D) a radioactive gas produced by the rocks and soil that can filter into houses.
E) the chemically active element in asbestos.

Question

Quizplus · Accepted Answer

Radon is a naturally occurring radioactive gas that is produced by the decay of uranium in rocks and soil. It can seep into homes through cracks in floors and walls.

Radon Is