The most important use of oxygen is in respiration. Oxygen is of great importance in the chemical and the iron and steel industries.Its other major use is in steel production â¦ , for example in the Bessemer process. The oxyacetylene torch is another important industrial application.ts other major use is in steel production, for example in the Bessemer process. The oxyacetylene torch is another important industrial application. Oxygen is utilized in medicine in the treatment of respiratory diseases and is mixed with other gases for respiration in submarines, high-flying aircraft, and spacecraft.
Ireland is known as the Emerald Isle. Green is traditionally worn on St. Patrick's day to honor the Emerald Isle. Tradition holds that on that day, people who do not wear green are pinched as a reminder to wear green to honor the Emerald Isle.
. . one answer at a time. One of the reasons that one wears green on St. Patrick's Day is because the Catholic side of Ireland is identified with green, and St. Patrick is a Catholic Saint credited with converting the island to Christianity.he traditional pinching of a person who wears orange on St. Patrick's Day is a mild form of the violence that has so often occurred in the past as both factions have had St. Patrick's Day marches/parades. In Ireland, you only wear green if you are Catholic.