Hydrogen, helium, ammonia, methane, neon, coal gas and pure nitrogen are all lighter than air. A pocket of air can be made lighter than the surrounding air by heating it. Continue Reading.
Related Questions. 1  Do 2015 Jeep Wrangler Sports have back air vents 1 answer I recently bought a 2015 Jeep Wrangler Sport and I am not sure if it has back air vents or not... If it does I can't seem to find them.
Car Buying Service. The GMC Canyon shares too much with its down-market twin, the Chevrolet Colorado, to be deemed upscale. Extended and crew cabs and five- and six-foot beds offer decent passenger and cargo room. A 2.5-liter four pairs with a six-speed manual or automatic for 191 lb-ft of torque.