Such wetlands naturally convert the runoff into nitrogen gas that is released into the atmosphere. (discovermagazine.com)
Because of the fleeting nature of nitrogen gas in liquid, it's hard to maintain tasty levels of the gas in packaged beers once you open them. (businessinsider.com)
All plants need nitrogen, yet the vast pool of nitrogen gas in the air is not available to many higher plants. (customwritingservices.org)