A representation of the terrain done in three dimensions to provide a striking and realistic expression of topography is called what?

• A. Contour map
• B. Schematic diagram
• C. Topographic sketch
• D. Relief model

Answer: (D)

Three-dimensional representation that captures terrain in a lifelike way is called a relief model. This type of model is a physical 3D replica of the land surface, showing elevations and landforms with real depth, so the topography reads as the eye would experience it in the field. A contour map, by contrast, is drawn on a flat surface using contour lines to indicate elevation, but it doesn’t provide the actual depth of features. A schematic diagram simplifies details into an abstract illustration, not a realistic terrain. A topographic sketch is usually a quick, hand-drawn depiction that hints at elevations without producing a true 3D form. The relief model’s ability to convey depth and texture makes it the most striking and realistic expression of topography among these options.