Can you give me some facts about nitrogen?

- It is an odorless, colorless, and mostly inert gas, and continues to be colorless and odorless at a liquid state. 
-Nitrogen is believed to be the seventh most abundant element in the universe.
-At normal pressure, nitrogen liquefies at 77 K (-195.79 °C) and freezes at 63 K (-210.01 °C).
-Liquid nitrogen boils at -195.8 degrees Celsius.
-Due to its volatility, it is a fairly rare element on Earth, remaining as a gas in the atmosphere.
-Scientists in the eighteenth century recognized that there was a component of air that did not support combustion, thus discovering nitrogen.
-In 1772, Daniel Rutherford discovered what he called "noxious air," air that didn't contain oxygen.
-Large scale nitrogen manufacturing takes place through liquefaction of air and the fractional distillation of the resulting liquid air.All living things contain nitrogen, mostly in amino acids, DNA, and RNA.

The teacher is mostly talking about the distillation of a mixture