PPSC Past Paper Assistant Director Local Govt. & Community Development 2018 Solved MCQs, General Knowledge MCQs, PPSC Past Paper Junior Clerk S & GD 2018 solved MCQs, PPSC Solved Past Papers MCQsWhich gas is commonly used in balloons and airships? Posted on May 28, 2021August 7, 2021 by Rana TahirA. Hydrogen B. Helium C. Carbon di oxide D. Hydrogen SulphideShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)
