Glaciers are a destructive force, moving slowly across landscapes, reshaping them as they go.
- Over three-quarters of Earth's fresh water is locked in frozen reservoirs, known as glaciers.
- Glaciers are rivers of ice, which reshape the land.
- Glacial ice floes erode, transport and deposit rock - producing jagged rock surfaces and striations.
- Rocks are slowly worn away by a process called freeze-thaw weathering.