Question

Nitrogen oxides released in the stratosphere cause ozone depletion due to

• A. Catalysing conversion of ozone to oxygen
• B. Binding ozone
• C. Reacting with ozone
• D. All of the above

Answer 1

The correct option is C Reacting with ozone

Nitrogen oxide which causes ozone depletion is Nitrous oxide. It is similar to CFCs in that it is stable when it is released in the troposphere but when it reaches stratosphere, it releases ozone depleting substances which react with ozone and cause its degradation through nitrogen-oxide catalysed reaction.

So, the correct answer is 'Reacting with ozone'.