Because if you are ever doing research, for instance when you have to turn in your thesis for your PhD, you have to pass peer review. Also intellectual data that is not yours has to be properly cited otherwise it is considered academic dishonesty.
A. He’s a wiz in the biz of selling
The given passage above is actually quoted from MartIN Luther King Jr.'s "Letter From Birmingham Jail" in 1963. The author's purpose for including this sentence is that, the author wanted to convey to the reader that s<span>egregation must end immediately. Hope this answers your question.</span>
