Why can we hear different radio stations?

Your radio picks up those radio waves and channels them into electric circuits in your radio that convert them into sounds you can hear.

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.