Approximately 3% of our body is made of nitrogen, but we do use it for other purposes, including Nitrogen Oxide (N₂O) as an anaesthetic
nitrogen is a gas (N2)
Nitrogen (N2) consists of two Nitrogen atoms.
Nitrogen help humans in diffrent ways
fluorine- it is a gas
the most abundant gas is nitrogen answered by Isabella camera 10/18/10
Air/gas animals and humans breathe in, and a little bit of nitrogen is included in the air it has just breathed in.
Methane and nitrogen
Nitrogen can be gas, liquid, or solid, depending on its temperature and the pressure on it. In the kind of conditions where humans are also comfortable, nitrogen is a gas.
Humans use nitrogen in the form of proteins. Bacteria found in soil convert atmospheric nitrogen into nitrates that plants use to produce proteins.
nitrogen, oxygen, carbon dioxide
because most of our atmosphere has nitrogen in it
The same reason humans do. People breath oxygen and nitrogen.
No. They can not use nitrogen gas because the triple bonds of nitrogen can only be broken down for use in living things, plants, by the symbiotic bacteria in the root nodes. Then in other forms nitrogen is taken up into the plant and from there to other trophic levels.
Since the air around you is about 78% nitrogen gas, you might think it would be easy for organisms to retrieve nitrogen easily. However, most organisms cannot use nitrogen gas. Nitrogen gas is called "free" nitrogen because it's not combined with other atoms. Most organisms can use nitrogen only when it has been combined with other elements to form nitrogen-containing compounds. So, is that the answer you were looking for (possibly for homework)?
Nitrogen is changed into compounds that plants can use by bacteria.
Plant can not use nitrogen "air" (gas), it must be "fixed" , a nitrous compound.
For humans to be able to use nitrogen it must be converted from N2 (g) to ammonium (NH4^+), nitrate (NO3^-), or organic nitrogen. Nitrogen is the majority of the air we breath but it is relatively inert due to the triple bond between N atoms.