PPSC Past Paper Social Security Officer in PESSI – Labour and Human Resource Department 2018 Solved MCQs, Islamic Studies MCQs, PPSC Solved Past Papers MCQsHajj was made obligatory in?A. 9 AH B. 10 AH C. 11 AH D. 08 AH Capital of Yemen is?Cave Hira, where Muhammad (PBUH) received revelations, is on which mountain?