Q) Which of the following statements is/are correct with regard to Ozone
Depletion:
I) Ozone hole is measured in terms of ozone concentrations, which is expressed in Dobson units.
II) The major cause for Ozone Depletion is the presence of CFCs i stratosphere-CFCs are entirely man made and not found naturally.
Options:
A)I only.
B) II only.
C) Both I and II
D) None of these