Question

Give reason why ozone layer was formed after origin of life.

Answer 1

ozone layer is formed because it protects us from the harmful ultraviolet radiation of the Sun.

Answer 2

Formation of the Ozone Layer. Over two billion years ago, early aquatic organisms called blue-green algae began using energy from the Sun to convert molecules of water (H2O) and carbon dioxide (CO2) and recombine them into organic compounds and molecular oxygen (O2).The thin layer of ozone that surrounds Earth acts as a shield, protecting the planet from irradiation by UV light. ...Ozone is produced naturally in the stratosphere when highly energetic solar radiation strikes molecules of oxygen, O2, and cause the two oxygen atoms to split apart in a process called photolysis.