The type of burn characterized by a red or mottled color, a wet appearance, and a blister or vesicle is a?

The answer to your question is a second-degree burn. 

Hope this helped.

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