The process which causes potholes in roads is called when it occurs under glacial ice

Expansion and Contraction of underneath or base water

Explanation:

When ice lands on a road, it weakens the soil beneath the pavement, cement by expansion. The slight varying temperatures that leads to the combination of contraction and expansion affects road this leading to potholes on road.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

i'd say that the moon rock is about 2.2 billion years old.