What is the relationship between self-understanding and human relations?

Each answer minimum 2 pages. Course material: ISBN-13: 9780134130408 Unit 1, Question 1: What is the relationship between self-understanding and human relations? Elaborate and be specific. Unit 2 Question 2: What is nonverbal communication? Detail and discuss at least three types. Unit 3 Question 3: Elaborate on at least two methods for motivating employees. In your opinion, what is the best form of motivation and why? Unit 4 Question 3: Discuss some key sources of work stress and suggest ways to reduce them.