PPSC Solved Past Papers MCQs, Pak Study MCQs, PMS GK 2020 Solved Paper MCQsThe Pakistani scientist who worked under Albert Einstein ?A. Dr. Saleem uz Zaman Siddique B. Muhammad Raziuddin Siddique C. Dr. Munir Khan D. Dr. Abdus Salam Jabir bin Hayan is famous for his work on ?India represent what percent of South Asia’s population?