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

The ultraviolet radiations in the stratosphere are absorbed by

Recognizing the deleterious effects of ozone depletion,an international treaty known as . . . . . . was signed at . . . . . . .

The ozone layer in the upper atmosphere $(stratosphere)$ is destroyed by which of the following chemicals, or which chemical is responsible for the reduction of the ozone content of the atmosphere?

Maximum ozone layer depletion is caused by . . . . . .

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