Hi, I have to say that I'm not sufficiently educated in physics but I'm very interested in it so please excuse my silly questions. First I'd like to ask what determines the quantity of space that the black hole occupies. Is it just the amount of matter that imploded during the super nova explosion or does the black hole grow bigger with everything that gets in it? If it grows bigger all the time doesn't it mean the matter doesn't completely disappear in the BH, nor it does appear again in other places? Another question is: when the BH spews out energy it's because the heat and density along with magnetic field somehow overwhelms the gravitational pull of the BH? Does it spew out of the BH itself? does it spew out matter that's within the event horizon?