Identify the objective lens of the compound light microscope. (1 point) Part A
Part B
Part C
Part F

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

There are seven crystal systems triclinic, monoclinic, orthorhombic, tetragonal, trigonal, hexagonal and cubic.