topographic map show differences in elevation through the use of contour lines.
usually, purple means it is below sea level, while red or brown means it is at a higher level. it is all color coded.
Topographic graphs use many different means of showing elevation, the most common being contour lines in which elevation is shown by lines drawn on the map indicating specific heights. Another common...
some colors some pointers it depends on the map
a topographic map
Location and elevation of Earths surface features.