FREE POINTS DOING THIS EVER TIME I GET 100 POINTS> SO FOLLOW ME IF U WHAT POINTS. IF U DONT GET THE POINTS THERE WILL BE AN OTHER TIME ⇒⇒⇒⇒⇒⇒⇔⇔⇔⇔⇔⇔⇔⇔∈∈∈∈∈

The speed of  sound:   sound travels  at different speeds depending on what it istraveling through. of the three mediums (gas, liquid, and solid)  sound waves travel the slowest through  gases, faster  through  liquids, and fastest  through  solids.

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