Oxygen is one such element, which exists in nature but in a complex compound that is commonly referred to as air. The air that humans breathe is only partially made up of oxygen, with nitrogen, hydrogen and methane making up the majority of the atmosphere's volume. On the periodic table, there are 109 known elements in the universe.
And in order to cover the most of other countries, they added the 2 dominant languages of west (Spanish) and east (Arabic). I think if there was a rationale in choosing a language as the official language of UN, only Spanish and Arabic are chosen reasonably as they cover more than 50 countries in the world. I am sure the list of official languages in the UN would be quite different if the victorious countries were different.
Kinyarwanda is the first language of almost the entire population of Rwanda. It, French, and English are the official languages of the country. Rwandan Sign Language is used by the educated deaf population.ince the 1994 genocide, the complications of relations with the current French government, the return of numerous Tutsi refugees who went to Uganda (anglophone), and also the intervention of the United States, English has been used by more of the population and administration.