👉 Glacialism is a geological process in which ice sheets move over land, causing erosion and sedimentation. This can be seen in the form of glaciers, which are large bodies of water that flow across mountains or valleys during periods of cooling and warming. Glaciers can also cause significant changes in elevation and landscape, as they carve out new valleys and ridges. Glacialism is important for understanding Earth's climate history and how it has changed over time. It helps to identify the timing and