PPSC ZILADAR(Research/DLR Zone)(14-20G2020) Irrigation Department, Everyday Science MCQs, PPSC Solved Past Papers MCQsThe gas, commonly known as “laughing gas” is?A. Carbon Dioxide B. Sulfur Dioxide C. Nitrous Oxide D. Sodium Oxide The concept of Carbon credits originated from which of the following?Benazir Bhutto was married to?
