PPSC Assistant Director Population Welfare(BS-17)-2020, Everyday Science MCQs, PPSC Solved Past Papers MCQsThe study of age, aged and aging is called as? Posted on April 2, 2021 by Rana TahirA. Histology B. Cosmology C. Gerontology D. None of theseShare 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)