PPSC Personal Staff Officer (BS-17) S&GAD 2020, Everyday Science MCQs, PPSC Solved Past Papers MCQsAccording to Simon Winchester’s book, how many Technical plates are there in earth? Posted on April 8, 2021 by Rana TahirA. 15 B. 29 C. 32 D. 36Share 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)