PPSC Past Paper 2020 For the Post of Labour Officer, General Knowledge MCQs, PPSC Solved Past Papers MCQsHow many countries are members of the European Union?A. 26 B. 27 C. 28 D. 29 Terabyte is equal to __?Through which constitutional amendment, Federally Administered Tribal Areas (FATA) were merged with Khyber Pakhtunkhwa?