Geological processes such as weathering, erosion, tectonic activity, and volcanic eruptions play a significant role in shaping natural landscapes. Over millions of years, these processes have sculpted the Earth's surface, creating mountains, valleys, canyons, coastlines, and other landforms that we see today. Erosion by water, wind, and ice can carve out valleys and form cliffs, while tectonic activity leads to the formation of mountains through the collision of tectonic plates. Volcanic eruptions can create new landforms such as volcanic mountains and plateaus. Overall, geological processes continually transform and shape the Earth's landscapes.