PPSC Past Paper Junior Clerk (Labour and Human Resource Department)2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsDiaphragm is a thin skeletal muscle in body related to?A. Digestion System B. Respiratory System C. Nervous System D. None of these How many types of Tawaf are there?Diphthena is a disease related to?