Number 4 for the explain your reasoning part 30

The organism dies boomshakalaka

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

Ithink its because more have died recently than in the past.

if you solve this you will know the answer