PPSC Past Paper Assistant Director Local Govt. & Community Development 2018 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsDeficiency of iodine causes which of the following diseases?A. Dental Cavities B. scurvy C. Hepatitis C D. Goitre which sahabi was the first Hafiz of the Holy Quran?Which of the primary component of natural gas?