Some of your classmates become ill_mannered and used foul language when they disagree with each other or quarrel. with your partner discuss. 1why they behave this way?2the advice you would give them all to behave better?

They behave like this because they get angry because they can't convey their messages and persuade their opposition that their views are legitimate and correct. What they should do is remain calm and use actual argumentation instead of just attacking the opponent and yelling at them.