Which of the following sources of radiation provides most of our yearly exposure?
A)background radiation
B)smoke detectors
C)living near nuclear power plants
D)televisions (cathode ray tubes)
E)dental and medical X-rays

Question

Quizplus · Accepted Answer

Background radiation is the radiation that is naturally present in our environment from sources like cosmic radiation, radon gas, and radioactive isotopes in soil and rocks. It accounts for about 80% of our yearly exposure to radiation, while the other sources listed contribute only a small fraction.

Which of the Following Sources of Radiation Provides Most of Our