With the passage of time, the rock wall would be weathered under the impact of flowing water and would receede backwards. Explanation: Given details= Water flowing at the pace of 2 to 3 feet per sec It must be understood that flowing water act as an erosive agent here. As the water flows, it carries with itself erosive tools which erode the rock surface. Since the speed of water is considerable, the erosion is quite significant. Due to the erosive action of the river, the rock wall would be continuously eroded starting from the tip and in turn, would recede backwards (in the upstream direction).
When atom gain electron in this atom the number of electron increase so the charge will negative and when loss electron the no of proton increase so the charge will positive because of more protons than electrons