How is ozone created in nature?

Ozone is created in nature primarily through a reaction involving ultraviolet light and electrical discharges, such as those produced during a lightning storm. When lightning strikes, the high energy released breaks apart oxygen molecules (O2) in the atmosphere. The free oxygen atoms can then react with other oxygen molecules to form ozone (O3). This process is particularly relevant because thunderstorm conditions promote both the production of lightning and the energetic environment that facilitates the formation of ozone, resulting in increased levels of ozone shortly after such storms.

The other options, while they might mention storm conditions or weather phenomena, do not accurately capture the specific process involving lightning that leads to ozone formation in the atmosphere. For instance, although thunderstorms can contribute to various weather effects, they are the electrical discharges—lightning—that specifically enable the chemical reactions necessary for ozone production.