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According to one major language theory, how did different groups develop their own languages?

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since you provide no options,

in the early of the development, language was used to communicate and make their daily activities easier

hope this helps
According to one major language theory, how did different groups develop their own languages?

Answer: There are two main theories that explain how different groups developed their own languages. The major one is that humans at some point in time evolved a language acquisition device.

I hope it helps, Regards.

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