Choose all the answers that apply. major areas of science include

What are the possible answers? Edit: I didn't know I could ask for details

Iwolud you, but i dont know what you are asking.

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it