An individual with a diagnosed personality disorder is emotionally unstable, impulsive, and reckless. this person's diagnosis is likely to be which personality disorder?

Why is corruption not effectively reduced in nepal

Which of the following statements about early mesopotamian civilizations is false? a. mesopotamia was one of the first places in the world where urbanization occurred. b. mesopotamian civilizations settled between the tigris and euphrates rivers. c. mesopotamia was located in modern-day china. d. mesopotamian civilizations invented the wheel.

This is for my social studies guide and i can answer 21/22 of it perfectly fine. but can someone tell me what the caste system was, and what divisions/classes that it was apart of it?