Answer:
1) Personality
2) Psychologist
Step-by-step explanation:
Personality refers to the cognitive, behavioral, and emotional patterns of a particular individual. It has been shown that personality traits can be influenced by both biological (i.e., genetic) and environmental (e.g., cultural, educational) factors. People can be classified into two basic personality types: 1-introverts (turned inward) and 2-extroverts (turned outward). Moreover, a psychologist is a professional whose primary objective is to understand different personalities by studying the mind and behavior. Thus, a psychologist studies how personality traits influence the way in which people relate to one another and to their environments.