We use this property of radiation to kill cancer cells as well as harmful bacteria and other micro-organisms. Alpha, beta and gamma radiations are all examples of ionising radiations. Alpha ...

One example of a use of alpha radiation is in smoke detectors. A source of alpha radiation is used because the range is very low and alpha radiation has a very high ionising power.

The idea of ecological opportunity acting as the trigger of adaptive radiation has been demonstrated in numerous examples using both living and extinct organisms. Ecological opportunity permits a ...