Rivers
boarders
Called both Elevation Lines or Contour Lines
n on a map stands for north on a compass
On an OS map, it's a Public House
The lines that connect points having the same elevation are a kind of isopleth called contour lines, or contours.The closer that the lines are on the map the steeper the terrain is.
boarders
Isotherms and they are lines on a map that connect areas with the same surface temperature.
usually it's state boundaries
the lines on the map is called longitude and latitude.
There will be several dark lines on a map, illustrating roads, power lines etc, BUT you probably mean contour lines. These are lines of equal altitude and are usually coloured brown for land, or blue for snow or ice fields.
It shows whatever is on a map. For example if you have two lines on a map, you wouldn't know what each of the lines mean unless there is a distinction between them. If one was a regular line with no other markings and the other was a line with slashes between them, the key would say what each of the lines stand for. Oh and the key is usually a box.
Parallel lines found on a map correspond to latitude.
The dark brown color on a topographical map usually represents contour lines that indicate elevation changes in the terrain. It is used to show areas of higher elevation such as mountains, hills, or other elevated land features.
There can be various lines on a map, but the ones you are probably thinking of are 'latitude' and 'longitude'.
marks on a map that stand for real places or real features on a map
The dark lines are absorption spectrum, the energy absorbed by Atoms in the atmosphere of the star. ================================ Fraunhofer's spectral lines.
longitude