The radioactive Strontium-90 causes : A)Brain cancer B)Skin cancer C)Lung cancer D)Bone cancer
Option D).Strontium-90 is considered a cancer-causing substance because it damages the genetic material (DNA) in cells. In one geographical location near a nuclear weapons plant, an increase in leukemia (a form of cancer) was reported in people who swallowed a large amount of strontium-90 in water.
