Contour lines that are very close together on a topographic map indicate a steep incline in the terrain. This feature helps in understanding the steepness of the land, critical for various applications like hiking and urban planning. Other options, such as political boundaries or population density, are unrelated to the contour lines themselves. ;
Close contour lines on a topographic map indicate a steep incline in the terrain, which is why the correct answer is A. It has a steep incline. Other options do not relate to the information provided by contour lines.
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