Here's why:
* Relief refers to the difference in elevation between different points on the Earth's surface.
* Shading creates the illusion of light and shadow, highlighting the changes in elevation.
* Modeling uses three-dimensional techniques to physically create the shape of the terrain.
There are different ways to create relief maps:
* Contour maps: Use lines of equal elevation to depict the terrain.
* Shaded relief maps: Use computer software to simulate light and shadow on a contour map, creating a more realistic depiction of the terrain.
* Physical models: Create physical representations of the terrain using materials like plaster or clay.
So, the term relief map encompasses all these methods that aim to visually represent the shape of the ground.
