What statements about radiation is true?

Radiation refers to the emission and transmission of energy in the form of waves or particles. It can be classified into two main types: ionizing radiation, which has enough energy to remove tightly bound electrons from atoms, and non-ionizing radiation, which does not carry enough energy to ionize atoms. Common sources of ionizing radiation include radioactive materials and medical imaging technologies, while non-ionizing radiation includes visible light and radio waves. Both forms of radiation can have health effects, with ionizing radiation being more harmful due to its potential to damage biological tissues.