Select the relevant option regarding the $Montreal$ $Protocol$.

Ozone $(O_{3})$ depletion is due to

Explain Ozone Depletion in the Stratosphere.

Which layer of the atmosphere contains the ozone that is referred to as 'bad ozone'?

Which of the following acts as a catalyst in the depletion of the ozone layer?

Which of the following statement$(s)$ is/are correct?
$(i)$ The Montreal Protocol was signed in $1987$ and became effective in $1989$.
$(ii)$ 'Good' ozone is found in the troposphere.
$(iii)$ Ozone is formed by the action of $UV$ rays on molecular oxygen and degrades into molecular oxygen.
$(iv)$ $CFCs$ are responsible for the imbalance between the production and degradation of ozone.
$(v)$ $DNA$ and proteins of living organisms absorb $UV$ rays.