Noble gas||418.01 Greenhouse gas||270.1 Breathing gas||186.49 Volcanic gas||173.63 Inhalant||154.34 Scientific opinion on climate change||147.91 Asphyxiant gas||135.05 Inert gas||128.62 Xenon||115.75 Ice core||109.32 Lighter than air||102.89 Kinetic theory||102.89 Baldota Group||90.03 Shielding gas||90.03 Firefighting||83.6 Earth's atmosphere||83.6 Boiler (steam generator)||83.6 Gas metal arc welding||83.6 Vacuum pump||77.17 Noble gas compound||77.17 Industrial gas||77.17 Partial pressure||77.17 Nitrogen narcosis||77.17 Sewer gas||77.17 Gibbs paradox||77.17 Attribution of recent climate change||70.74 Wet scrubber||70.74 Graham's law||70.74 Atmosphere||70.74 PCV valve||70.74 Air preheater||70.74 Bottled gas||70.74 History of manufactured gas||64.31 Anaesthetic machine||64.31 Electron affinity||64.31 Orifice plate||64.31 Krypton||64.31 Acid rain||64.31 Electrical Equipment in Hazardous Areas||64.31 Global warming potential||64.31 Astronautical hygiene||64.31 Muzzle brake||64.31 Speed of sound||64.31 Fart lighting||57.87 Global cooling||57.87 Flatulence||57.87 Joule–Thomson effect||57.87 Scrubber||57.87