Final answer:
Social networks have several characteristics according to Perrin, 2nd edition: they allow people to compare themselves to others, provide emotional support, and allow individuals to challenge their beliefs and prejudices.
Step-by-step explanation:
According to Perrin, 2nd edition, social networks have several characteristics. One of these is that they provide a social network that allows people to compare themselves to others. This can be seen through features such as the ability to see others' posts and profiles, giving individuals a sense of how they measure up to their peers.
Another characteristic is that social networks allow members to give and receive emotional support. This is often done through features such as likes, comments, and private messaging, where individuals can express their support, empathy, or concerns for others.
Lastly, social networks allow individuals to challenge their beliefs and prejudices. Through exposure to diverse opinions and perspectives, individuals are often exposed to new ideas, which can lead to the questioning and reconsideration of their own beliefs and biases.