Sentences with phrase «nitrogen gas existed»
Some scientists suspect that nitrogen gas existed on Mars, but was blasted away by asteroid impacts billions of years ago.
https://www.scientificamerican.com/ Not exact matches
Like hydrogen, oxygen, and iodine, nitrogen normally exists as two - atom molecules in the form of a gas at room temperature.
«Aircraft emit nitrogen oxides (NOx) and sulfur oxides (SOx), which react with gases already existing in the atmosphere to form harmful fine particulate matter.
Aside from the obvious difference that humans are not altering the nitrogen concentration of the atmosphere, as they are with (several) greenhouse gases, such a question boggles the mind in terms of the mindset that must exist to ask it in a public congressional hearing in the first place.