What are the benefits of using radioactivity?

Answer:

The phenomenon of radioactivity has a number of useful applications. It is a necessary aspect of nuclear reactors. It is used in smoke detectors. It is used to kill cancer cells. It can be used for many kinds of scientific analysis, such as carbon dating, radioactive tagging, the PET scan, etc.

First answer by David6023. Last edit by David6023. Contributor trust: 511 [recommend contributor recommended]. Question popularity: 1 [recommend question].