PPSC Solved Past Papers MCQs, Everyday Science MCQs, PMS GK 2020 Solved Paper MCQsDepletion of the ozone layer is caused due to ? Posted on March 25, 2021 by Rana TahirA. Ferrocene B. Fullerenes C. Freons D. PolyhalogensShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)
