General Linguistics concerns itself with fundamental questions about the nature of language and its relationship to other human faculties. It considers language as a cultural, social, and psychological phenomenon. Descriptive Linguistics studies how languages are structured through research on a wide variety of languages. Second Language Acquisition draws on various fields to describe how second languages are learned by individuals in different contexts and to explain the underlying biological, cognitive, and social mechanisms. Sociolinguistics focuses on how social situations affect language and language attitudes. Psycholinguistics explores linguistic competence and performance through the psychological processes involved in representing, comprehending, and producing speech and language acquisition.