PPSC Past Paper Sub inspector Punjab Police (Service Quota) 2019 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsCooking gas is mixture of which of the following two gasses?A. Methane and Carbon Dioxide B. Oxygen and Nitrogen C. Butane and Propane D. Oxygen and Methane In a 100m race, A covers the distance in 36 seconds and B in 45 seconds. In this race a Beats by?Where is located the Headquarter of UNHCR?