ozone-oxygen cycle

No UVC radiation penetrates to the ground as it is absorbed in the ozone-oxygen cycle.

Sydney Chapman explains the ozone-oxygen cycle, the process by which ozone is continually regenerated in Earth's stratosphere.

This process is called the ozone-oxygen cycle, and it converts UV light into heat, preventing it from reaching the surface of the Earth.

These two reactions form the ozone-oxygen cycle, in which the chemical energy released when O and O combine is converted into kinetic energy of molecular motion.

The ozone-oxygen cycle: the ozone molecules formed by the reaction above absorb radiation having a wavelength between 240 and 310 nm (UV-B and the very top end of UV-A).