What type of boundary is defined by straight lines drawn on maps, not by natural or cultural features?

What type of boundary is defined by straight lines drawn on maps, not by natural or cultural features?

• A. Natural Boundaries
• B. Ethnic Boundaries
• C. Physical Boundaries
• D. Geometric Boundaries

Answer: (D)

The boundary type being described is defined by straight lines drawn on maps rather than by physical terrain or by how people are distributed. This is a geometric approach to borders, where lines of latitude, longitude, or other fixed coordinates create the edge, rather than following rivers, mountains, or ethnic/cultural divisions. Geometric boundaries are common in treaties and colonial-era agreements because they offer clear, administratively convenient lines on a flat map. A classic example is the portion of the US–Canada border along the 49th parallel, a straight-line border formed by coordinates rather than natural features or population patterns. Since the question specifies straight lines and map-defined boundaries, this type best fits.

The boundary type being described is defined by straight lines drawn on maps rather than by physical terrain or by how people are distributed. This is a geometric approach to borders, where lines of latitude, longitude, or other fixed coordinates create the edge, rather than following rivers, mountains, or ethnic/cultural divisions. Geometric boundaries are common in treaties and colonial-era agreements because they offer clear, administratively convenient lines on a flat map. A classic example is the portion of the US–Canada border along the 49th parallel, a straight-line border formed by coordinates rather than natural features or population patterns. Since the question specifies straight lines and map-defined boundaries, this type best fits.