A student studying the amount of soil erosion due to heavey rainfall in an area with many hills and valleys. in which of these locations in the area will the student most likely find the greatest amount of soil erosion A. the hillsides

B. flowing water

C:a densely city in a valley, because removal of grass an trees to build structures leaves soil exposed to the flower water
D. A hillside where the trees have been cut down for lumber because there are fewer plants to slow the flow of water down the hillside