While guys physically fight to express anger, girls are mean in their relationships because that is the way that they express their anger. So, to answer the question, yes; girls are too mean to each other, but that's because that's what a girl knows.

Homework is definitely helpful to a student's education. When doing homework, a student is learning about the subject they are working on. If they work on a certain subject many times, a student may start to understand it better.