PPSC ZILADAR (14-19G- 2020) Irrigation department, Everyday Science MCQs, PPSC Solved Past Papers MCQsHeating element of an electric heater is made up of?A. Tungsten B. Graphite C. Chromium D. Nichrome According to Simon Winchester’s book, how many Tectonic plates are there in earth?Fi-rakab (فی رقاب) means?