Why is American-style football often called the “gridiron sport?"

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.

Which is the link between heredity and tobacco addiction

What are the two things that all sociologists do in their studies?