Contour line – Contour line imaginary level line passing through the equal points of elevation. 1. With the help of a contour map proper and precise location of engineering works such as roads, canals, etc., can be decided. 2. Contour maps can be used to learn about the shape of the land. Example: A map with only a few contour lines will be flat, If a map has lots of Contours it i... https://perfectcivil.com/uses-of-contours/