Answer:
Cirques, horns, and arêtes form from glacial erosion, whereas moraines, erratics, and till form from glacial deposition.
Step-by-step explanation:
Glacial erosion is, as its name implies, an erosion caused by the action of ice, and it happens when huge ice blocks or even glaciers break off from their original substrate and plummet into or at the bottom of the ice. relief or at sea. While the glacier detaches from its substrate, it causes friction between the block and the ground, causing a U-shaped erosion. As a result of glacial erosion, Cirques, horns and arêtes may appear.
Glacial deposition occurs when there is a drop in temperature and a lack of chemical reactions in water. This process promotes an inteperism that results in a self-degree of physical decomposition that changes the relief of the landscape. This process can form moraines, erratics, and till.