What does it mean? labeled number 4 on the map? We don't get it. Sorry.
number 1
It is obvious you have a map. We don't have the map so you need to figure out the area you were asked about.
it would be middle American for the most because on my map it shows middle American
topographic map
The Eastern US has always been the most densely populated area of the country since colonial times.
number 1
central valley
there are 15 countries labeled on the map because 8 are not labeled on the map
They are labeled with a star.
15 countries are labeled on the map.
Bogotá... Retard :) get a life and figure out crap on studyisland :)
5,000
Horc Fort is in the area labeled GREENGUARD on the map. Horc Fort is on the far right hand side of the screen.
You didn't include the picture of the map.
Topographical lines
It varies with where you are on the earth. It all has to do with your geographic position (lat/lon) and also the magnetic activity of the area. You can acquire a USGS topographical map and it will have the magnetic variation for the area shown.
See the Related Links.