Lacking a copy of the map you are referencing it is impossible to know what "B3 to E3" refers to, which is necessary to answer your question. Therefor Answers.com can not answer your question.
What is represented by the letter E on the map
It usually means water.
If bob has two ducks and a puppy how many rabbits does he have?
They usually developed near a major body of water. which is the Indian ocean
A series of islands off the east coast of Mexico and just south of Miami, USA.
the world map
See the related links below for maps of the Bahamas.
It is meduium
It is meduium
A blue line on a map is a lake ,river , or body of water
Columbus would have drawn North America on his map next to the Bahamas.
a small body of water that connects two larger bodies of water
What is represented by the letter E on the map
The Bahamas are north of Cuba. See the related link below for a map of the area.
It usually means water.
pakalertpress.com has a really good map.
it depends on what map