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decomposition, because once animals or plants die, the nitrogen is then returned to the air.
Our air is about 79% Nitrogen.
Air is 78% Nitrogen
78% portion of air is nitrogen.
Natural gas, also known as methane, is a source of hydrogen, and air consists mainly of nitrogen, so the two can be used to form ammonia, which is a compound of nitrogen and hydrogen.
Nitrogen fixation is the process by which bacteria remove nitrogen from the air and make it available to plants.
Nitrogen Fixation
Transpiration.
decomposition, because once animals or plants die, the nitrogen is then returned to the air.
The process of converting nitrogen in the air to nitrates.
Denitrification
Nitrification, an important step in the nitrogen cycle.
nitrogen fixation
Algae participates in a process called nitrogen fixation. In this process, Nitrogen (N2) is removed from the air and converted into ammonia (NH3). This process is especially important due to the need for ammonia in the biological process of biosynthesis.
from liquidised air through a process known as fractional distillation
Denitrification, I believe.
Nitrogen from the air Hydrogen from methane (natural gas) Hope this helps :)