When mass wasting occurs at a slow pace, which term is applied? rock fall false creep true landslide false glaciation false Single Which element of nature is the dominant cause of mass wasting? Water false Ice false Tidal waves false Gravity true Single Landslides may cause homes to slide into valleys. What type of event is a landslide? Weathering false Sorting false Mass wasting true Deposition false Single Telephone poles being tilted on a hill are an example of this type of mass movement. Slump false Creep true Rockfall false Mudflow false Single Why do heavy rains help cause mass wasting? They cause the plants to grow false They cause the soil to be wet and heavy true They cause the animals to come out of their homes false They cause strong winds false Single Why is building houses on hills in landslide danger zones not a good idea? The houses' added weight can cause landslides true The houses' noise can cause landslides false Animals like dogs can dig holes in the ground that can cause landslides false All of the above false Single Which is an example of mass wasting? A volcano erupts on Io, covering a large region with sulfur. false A glacier slowly erodes a valley, bulldozing rocks ahead of it. false A massive meteorite crashes and explodes on the Moon, leaving a large crater. false A wall of a canyon on Mars collapses, leaving an apron of debris on the valley floor. true Single Earth’s surface is not completely flat because Earth materials have an inherent ability to resist sliding downhill. This is known as: Repose false Solifluction false Shear strength true Gravitational stability false Single Which statement about the angle of repose is correct? The angle of repose is about 30 degrees. false The angle of repose is the minimum angle at which a slope is stable. false The angle of repose is used to refer to bedrock or unconsolidated sediment. false The angle of repose varies depending on the grain size and shape of the sediment. true Single A student notices that sand castles made with wet quartz sand are more stable than those made with dry quartz sand. He infers that the more water is added, the more stable the castle will be. Which is the most accurate evaluation of his inference? He is incorrect because too much water will dissolve the quartz. false He is correct because water reacts with the quartz and turns it into clay. false He is incorrect because once the sand is saturated, the water will push apart the grains. true He is correct because adding more water increases the surface tension between the sand grains. false Single