Radiation that is emitted from deposits of Uranium, Thorium, and other radionuclides in the Earth's crust and soil is:
A. Extraterrestrial radiation
B. Internally deposited radionuclides
C. Terrestrial radiation
D. Cosmic rays
Answer:C
Radiation that is emitted from deposits of Uranium, Thorium, and other radionuclides in the Earth's crust and soil is:
A. Extraterrestrial radiation B. Internally deposited radionuclides C. Terrestrial radiation D. Cosmic rays