One reason is because culture is strongly embedded in language. Having one universal culture in our world is pretty much impossible. People are diverse in so many ways - genetically, physically, mentally, religiously, culturally, historically, etc.
Language is part of that. Language experts can explain more about how within language structure are reflections of the culture in which they are based.
There is not one official language spoken by the world.
If you're talking about the Northeastern United States, there is no one language that is exclusively spoken there, but the most widely spoken language is English.
The language spoken in Germany is German. It is a West Germanic language and is one of the most widely spoken languages in the European Union.
If you mean the Northwestern United States, there is no one language that is spoken exclusively, but English is the most widely spoken.
English is the most commonly spoken language in the United States.
to teach one the art of a written language or spoken language and to help to perfect it
Filipino (or Tagalog) is the main language spoken in the Philippines.
One of the languages spoken in Mexico is Spanish.
If you mean an Alternate Language, it would be a language that is not the one being spoken of.
Irish is the first official language of Ireland and English is the second one. English is the more commonly spoken language.
Your primary language is the one most often spoken. Schools dealing with ESL populations and immigrant parents regularly query what is the primary language spoken in the home to help with home school communications. A seconday language would be any other language you spoke, or if more than two languages are involved the one most next often spoken after the primary language.
Kamarupan is one of the languages spoken in northeastern India and adjacent regions of western Burma. It is the Tibeto-Burman language.