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.
In the 200 years that followed, green became associated not just with Irish cultural identity in general, but it was revived as a symbol of St. Patrick and St. Patrickâs Day. Why Does Everyone Drink So Much on St. Patrickâs Day? Ah, now we get to the fun part. St. Patrickâs Day was, as you can imagine, first conceived as a religious holiday. It was celebrated informally by the Irish for several centuries after his death, but it was adopted by the Catholic Church in the early 17th century as an official feast day. And where there is a feast, there will be drinking.