I believe the answer would be B
Both represent physical weathering.
Answer:
b.severity of flooding
Explanation:
Why?because if it had a big river it can cause a flooding.
In glacial erosion by abrasion, a glacier loosens and lifts blocks of rock as it flows over the surface.
Hope helps!-Aparri
Large trees and ferns need water to survive. This suggests that the biome was once very different from the desert it is today. #globalwarming lol