Answer:
"Full of diversity" means that there are any and all kinds of people in that country. "empathy" means allowing yourself to imagine what the other person(s) is going through, even if you haven't been through it personally. "cooperation" means having the ability (and patience) to work together with someone or a group of people to accomplish a goal or task. To "justify" something means to explain why it is right, or why something is the way that it is. In conclusion, in countries where there are tons of different kinds of people, you never know what you are going to face r what you are going to have to deal with, which is why you should exercise the character traits of empathy and cooperation to be able to maintain a good connection with others.