The global agreement to reduce the emission of substances that cause the depletion of the ozone layer was adopted in which of the following?

In which layer of the atmosphere is ozone found that absorbs ultraviolet radiation from the Sun?

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?

Which of the following is responsible for the depletion of the ozone layer?

Given below are two statements.
Statement $I$: Absorption of $UV$ radiations is directly proportional to the thickness of ozone.
Statement $II$: Ozone is generated by absorption of shorter wavelength of infrared radiations.
In the light of the above two statements,choose the correct answer from the options given below.

$CFCs$ are not recommended to be used in refrigerators because they