Nitrogen (N2) and oxygen (O2) are
two of the most abundant gases in the Earth's atmosphere. Nitrogen makes up
about 78% of the Earth's atmosphere, while oxygen makes up about 21%.
Nitrogen is an odorless, tasteless, and colorless
gas that is chemically unreactive, which means that it does not readily combine
with other elements to form compounds. This makes nitrogen a useful component
of the air we breathe, as well as a key component in many industrial and
agricultural processes.
Oxygen is also a colorless, odorless, and tasteless
gas, but it is highly reactive and plays a critical role in supporting life on
Earth. It is essential for respiration in animals and plants, and it is also
used in many industrial processes that require combustion or oxidation
reactions.
Overall, both nitrogen and oxygen are important components
of the Earth's atmosphere and play critical roles in supporting life and
sustaining industry and agriculture.