The person who studies the surface features of the earth is called a geomorphologist.

Here's a breakdown of what they do:

* Geomorphology is the study of landforms and the processes that shape them.

* Geomorphologists analyze the origin, evolution, and distribution of landforms on Earth's surface.

* They examine features like mountains, valleys, rivers, glaciers, and coastlines.

* They use a variety of methods, including fieldwork, remote sensing, and computer modeling.

So, if you're interested in how the Earth's surface has been sculpted over time, geomorphology is a fascinating field to explore!