PPSC Personal Staff Officer (BS-17) S&GAD 2020, Everyday Science MCQs, PPSC Solved Past Papers MCQsHeating element of an heater is made up of?A. Tungsten B. Graphite C. Chromium D. Nichrome “Extraordinary, Ordinary people: A Memoir of Family” is a book written by?“Bunker and Chukker” are the two terms associated with _____?
