Answer:
The two main types of "glacial erosion" are "abrasion and plucking".
Step-by-step explanation:
- Out of the three most "significant types of glacial erosion", abrasion and plucking are the most important ones.
- Erosion due to abrasion is said to have occurred when the ice from the glacier rakes against a rock and causes the rock to fragment down.
- Glacial erosion due to plucking occurs when the ice from the glacier slides between the cracks in the rocks and cause the cracks to enlarge.
- This action of the glacier ice eventually plucks off smaller pieces of rocks from a larger rock causing of the rock to erode.