Ask me anything u want ill answer the best that i can

Sweat glands that cause orders during puberty are present in the body from the time of brith

Effective communication consists of a. verbal and nonverbal communication and speaking clearly and loudly b. verbal communication and stereotyping c. verbal and nonverbal communication and active listening skills d. nonverbal communication and minimal interruptions   select the best answer from the choices provided.

How could you find out if that advice is based in scientific evidence?