All Acronyms. CTA - Control Terminal Agency [Internet]; April 13, 2017 [cited 2017 APR 13]. Available from: https://www.allacronyms.com/CTA/Control_Terminal_Agency.
There are almost 120 known elements. For example, you are made up of billions of billions of atoms but you probably won't find more than 40 elements (types of atoms) in your body. Chemists have learned that over 95% of your body is made up of hydrogen (H), carbon (C), nitrogen, oxygen, phosphorus (P), and calcium (Ca).
While many believe the number of languages in the world is about 6,500, according to Ethnologue, there are 7,106 living languages as of 2014. Although this number might be the latest count, there is no one clear answer as to the exact number of languages that still exist. The question of how many languages there in the world has always been surrounded by uncertainty. While we might assume that linguists have a definite idea of the exact number, as it turns out, there are many different reasons why determining a full count of world languages is so difficult.