Answer:
Changes in language can originate from learning these languages, or through contact between languages, social differentiation and natural processes in the use of the language.
Explanation:
-Language learning: language is converted when transmitted from one generation to the next generation. Each individual must do a new grammar and lexicon that is based on information that comes from their parents, siblings, and community members.
-Linguistic contact: migration and trade put speakers of different languages in contact. Some will become bilingual as children, others will assimilate a second language as adults.
-Social differentiation. Social groups sponsor specific rules on clothing, decorations, gestures. Linguistic distinction can be achieved using vocabulary, pronunciation, etc.
-Natural processes in use. Informal speech causes processes such as assimilation, dissimilation, syncope, etc. The meaning of some words can change in the same way, through metaphor and metonymy.
