PPSC Past Paper Assistant Director Local Govt. & Community Development 2018 Solved MCQs, Everyday Science MCQs, PPSC Solved Past Papers MCQsWhich of the primary component of natural gas?A. Ethane B. Propane C. Methane D. Butane Deficiency of iodine causes which of the following diseases?which theory lays down that all matter is composed of discrete units called?
