Which human activities cause sudden changes to earth’s surface? choose all answers that are correct: a: planting crops on hillsides. b: erecting wind turbines c: cutting vast areas of forest. d: building tunnels through mountains.

sediment layers stop spreading when they reach a barrier or they run out of sedimentary material. lateral spreading is the movement of gently to steeply sloping, saturated soil deposits caused by earthquake-induced liquefaction. i hope this . : )