PPSC Past Paper Excise & Taxation Inspector Region (LAHORE) Excise, Taxation & Narcotics Control Department 2018 Solved MCQs, English MCQs, Idioms MCQs, PPSC Solved Past Papers MCQsChoose the correct meaning of the idiom to drive home?A. To find one’s roots B. To return to original position C. To return home D. To emphasize a point Who postulated the law of universal gravitation?Exposure to sunlight results in formation of ______ in the body?