Answer;
-Railroads
-Roads
-Bridges
Explanation;
-A topographic map is a detailed and accurate two-dimensional representation of natural and human-made features on the Earth's surface.
-The most distinctive characteristic of a topographic map is that the three-dimensional shape of the Earth's surface is modeled by the use of contour lines. Contours are imaginary lines that connect locations of similar elevation.
-Contours make it possible to represent the height of mountains and steepness of slopes on a two-dimensional map surface. Topographic maps also use a variety of symbols to describe both natural and human made features such as roads, buildings, quarries, lakes, streams, and vegetation.
