What is prejudice? Where in the world have you seen prejudice? What are the effects of prejudice?

The definition I know as prejudice is when an individual dislikes someone else with out a definate reason. There are lots of place in the world where you can find prejudice, I can see prejudice in Korea, I've seen it in America and all over the world. In America, we can see prejudice over white and black people often, and for all over the world, there are usually prejudice against other people's physical appearance. The effects of prejudice turns out to be bad, prejudice creates dislike and then people will have bad feelings against other people. We shouldnt dislike others without a definate reason, and even though there is a reason where you could dislike someone, you should try not to dislike them.