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.
Cruze is the first car in its class to have 10 standard air bags,â  side-impact and knee air bags help protect you and your front passenger, and a high-strength steel safety cage and roof-crush resistance surpass requirements.