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

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.

Good ozone and bad ozone are found in $.........$ respectively.

Where is the ozone hole most prominent?

Which of the following is extensively used as a refrigerant?

The primary pollutant in jet plane emissions is: