Which radioactive pollutant has drawn to public, due to its occurrence in the building material?
A. Radium
B. Thorium
C. Plutonium
D. Radan
Answer
Correct Answer: B. Thorium
Detailed About MCQs
Thorium radioactive pollutant has recently drawn the attention of the public due to its occurrence in the building material. Thorium (Th) is a weakly radioactive metallic chemical element. Thorium is moderately hard, malleable, and has a high melting point.