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.
One example of a language spoken exclusively in the northeast is Toda, which is spoken in the Nilgiri Hills region of India.
There are many countries that are not officially bilingual. Some examples include Japan, China, Russia, and many countries in Africa.
If you mean the Northwestern United States, there is no one language that is spoken exclusively, but English is the most widely spoken.
to teach one the art of a written language or spoken language and to help to perfect it
English is the most spoken language in the world because of the historical influence of the British Empire and later the United States as global superpowers. It is also widely used as the language of business, science, and technology, making it a common second language for many people globally. Additionally, the spread of English through media, entertainment, and the internet has further solidified its position as a global lingua franca.
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.
English is the most commonly spoken language in the United States.
English is commonly spoken as a second language around the world, due to its widespread use in international communication, business, and education. Additionally, languages like Spanish, French, Mandarin, and Arabic are also learned as second languages by many people for various reasons.
Kamarupan is one of the languages spoken in northeastern India and adjacent regions of western Burma. It is the Tibeto-Burman language.