Question

What kind of rays can travel thousands of meters through air and can penetrate and damage cells deep inside the body?

Answer 1

gamma rays

Alpha particles can travel only a few centimeters through air. They can burn the skin but not penetrate it. Beta particles can travel up to a meter through air. They can penetrate and damage skin. Gamma rays can travel thousands of meters through air. They can penetrate and damage cells deep inside the body.