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 color green is closely associated with Ireland, the Irish, and St. Patrick's Day â no matter where it is celebrated. It's also the color of nature.Originally, blue was the color for St. Patrick but today it's all about the green. Let's take a look at four specific shades of green as well as orange and gold. Irish green or Irish flag green is a shade of spring green. 2  Sometimes called Shamrock green, it's slightly greener with less blue tones than the color named Shamrock green.