Uses of nitrogen

Nitrogen is one of the elements that exist the earth.Many industrial compounds contains nitrogen.
Ammonia, nitric acids and cyanides contain nitogen.

Uses of Nitogen:1. Nitrogen is used in beer by mixing with carbon to maintain the saturation of beer
                             with carbondioxide.
                          2.Liquid nitogen used as an refrigerant.
                          3. Some nitrogen compounds are used as fertilizer.

Nitrogen is found as gas in the atmosphere.It enters into living organism through lightning.It is converted into biologically useful compounds through lightning.