I was not being rude, I was being more demanding and hopeful that you would not lapse into some habits of laziness by relying on others for your answers. Im a teacher in my line of work and I frequently get these kinds of half hearted attempts at scholarship. Its easy to search out Wikipedia answers to questions so Id only reccomend that you develop several ways to attack your studies. Youve asked several basic questions and Ive given hints at each one (IVe only been derisive with you on this thread because I believe you are lapsing into some laziness ).
Others may hold your hand, I, however, demand more of students(youll thank me later as study and resource ustilization becomes easire with each assignment)