PPSC Past Paper Excise & Taxation Inspector Excise & Taxation Department 2018 Solved MCQs, General Knowledge MCQs, PPSC Solved Past Papers MCQsTarbela Dam has been constructed on the river?A. Chenab B. Swat C. Jhelum D. Indus The most abundant element in the Earth’s atmosphere is?Which of the following disease have been eradicated in Pakistan?