An 85-year-old client has just been admitted to a nursing home. when designing a plan of care for this older adult, the nurse recalls what expected sensory losses associated with aging?

The majority of the elderly population will suffer at some point from changes in their sensory systems. In particular, they could suffer from diseases that impact severely their vision, such as cataracts, macular degeneration and glaucoma. They could also lose part of their hearing, smell taste. Finally, they could suffer from problems with their peripheral sensation.

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

D. peatlands,grassland,swamps