Question

Mention two possible source of background radiations.

Answer 1

Background radiations:- It is the radioactive radiation to which we are exposed even in the absence of an actual radiation source.

Sources of background radioactive:-

1. The radioactive substance such as potassium $\left(\mathrm{K}-40\right)$,Carbon$\left(\mathrm{C}-14\right)$ and radium are present inside our bodies.
2. Cosmic rays, the solar radiation coming from out space and naturally accruing radioactive elements such as $\mathrm{radon}-222$ and solar radiation are sources of background radiation.