PPSC Past Paper Assistant Director Local Govt. & Community Development 2018 Solved MCQs, General Knowledge MCQs, PPSC Past Paper Junior Clerk S & GD 2018 solved MCQs, PPSC Solved Past Papers MCQsStudy of spiders?A. Arachnology B. serology C. gerontology D. none of these GAWDAR became part of Pakistan in?Human heart consists of how many chambers?