Supersonic Jets causes the depletion of ozone layer by releasing the gas

The correct answer is Nitric oxide.​Key Points

• Aircraft produce water, in exhaust gases.  
• Gases like nitric oxide coming from these jets cause the depletion of the ozone layer.
• The ozone layer forms the upper atmosphere, also known as the ozonosphere.
• The ozone molecules shield and protect our planet from harmful solar radiation.
• All the commercial flights are confined to the troposphere, but high-level supersonic aircraft inject pollutants into the stratosphere, which leads to the thinning of the ozone layer.
• Ozone (O3) is the allotrope of Oxygen
• CO2 is carbon dioxide, while SO2 is sulphur dioxide.

Additional Information 

• September 16 is celebrated as World Ozone Day.
• Montreal Protocol on Substances that Deplete the Ozone Layer
  • It is an international treaty designed to protect the ozone layer from Chlorofluorocarbons (CFCs).
• Ozone Layer Depletion:
  • The ozone layer is the thin shield high up in the sky that stops ultra-violet rays from reaching the earth. As a result of human activities, chemicals, such as chlorofluorocarbons (CFCs) were released into the atmosphere, which contributed to the depletion of the ozone layer.