Question

What is the ozone layer and how does it protect us-

Answer 1

Ozone layer:-

1. Ozone ( ${\mathrm{O}}_3$) is a molecule that is made up of three oxygen atoms.
2. An oxygen molecule (${\mathrm{O}}_2$) is ionized into two oxygen atoms by high-energy UV radiation, If an unionized oxygen atom comes in contact form ozone (${\mathrm{O}}_3$).
3. At high altitudes between $15$ kilometers and $60$ kilometers, the atmosphere forms a layer of ozone (${\mathrm{O}}_3$).
4. The ozone layer protects humans and other organisms from the harmful effects of the ultraviolet radiation (UV-rays) of the sun.