Final answer:
The illustrated landscape, where light brown and dark brown land meet and is rough where they touch, is likely produced by erosion through the action of wind, water, ice, or other geological agents.
Step-by-step explanation:
The landscape illustrated, where light brown and dark brown land meet and is rough where they touch, is likely produced by erosion. Erosion is the process of wearing away of the Earth's surface through the action of wind, water, ice, or other geological agents. In this case, the roughness could be the result of the land being weathered and eroded by the forces of wind, water, or ice, creating an uneven surface.