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.
The Shamrock. One traditional symbol of Saint Patrick's Day is the Shamrock. Shamrock is the common name for several different kinds of three-leafed clovers native to Ireland.The shamrock was chosen Ireland's national emblem because of the legend that St. Patrick had used it to illustrate the doctrine of the Trinity.he beautiful green landscape was probably the inspiration for the national color. Wearing the color green is considered an act of paying tribute to Ireland. It is said that it also brings good luck, especially when worn on St. Patrick's Day.