Research on language development shows that deaf adults who acquired American Sign Language (ASL) in adolescence or adulthood never become as proficient as those who learned it in childhood. This is consistent with the <u>sensitive-period notion</u>.
<u>Explanation</u>:
American Sign Language (ASL) serves as the predominant sign language of Deaf communities in America and most of Anglophone Canada.
The sign languages use visual-manual modality to convey meaning. Sign languages are developed natural languages with their own grammar and lexicon. Facial expressions, hand movements and postures of the body are also used as a part of sign language.
American Sign Language is commonly followed by the deaf people as one of the communication option in America.
Answer:
ultra violet radiation (uv rays)
Explanation:
The answer is scientific method.
The scientific method was a new way to solve problems and conduct research in the 17th century. It is a process for experimentation that is used to explore observations and answer questions.
Operates when people conform to social norms for fear of negative social consequences
Answer: Sociologists place societies in three categories: <u>pre-industrial, industrial and post-industrial. </u>
Explanation: Sociologists, who focus on studying the roles in a society and the social relationships between its members, divide societies in three broad categories: Pre-industrial, Industrial and Post-industrial. <u>The Pre-industrial society is the one that existed before the Industrial Revolution</u>, that is to say before human beings developed machines and other types of technologies. The main activity during the Pre-industrial society was agriculture. On the other hand,<u> the Industrial society emerged due to the Industrial Revolution</u>. Mass production and division of labour were two of the main characteristics of this type of society. Finally,<u> the Post-industrial society appeared in the second half of the 20th century</u> and it is characterized by a shift from an economy that produced goods to an economy that offers services.