its the erosion
Normally slow
weathering
terracing grows some vegetation which helps slow down erosion
They can use sand bags to slow down the rate of erosion on barrier islands.
erosion is when the rock or soil falls and make a slope
Erosion.
the force of the sea
Farmers can reduce wind erosion by planting rows of trees around the perimeters of their fields to slow the wind at ground level.
erosion
glaciers
Slow change