PPSC ZILADAR (14-19G- 2020) Irrigation department, Everyday Science MCQs, PPSC Solved Past Papers MCQsAccording to Simon Winchester’s book, how many Tectonic plates are there in earth?A. 15 B. 29 C. 32 D. 36 How many times did Mahtir bin Muhammad become Prime Minister of Malaysia?Heating element of an electric heater is made up of?