PPSC Past Paper Labour Officer Labour and Human Resource Department 2018 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsDecibel is a unit used for?A. Speed of light B. Intensity of sound C. Intensity of Heat D. none of these Sharmeen obaid chinoy won an Oscar Award for the second time for her documentary movie titled?The synonym of Vibrant is?