Which sentence best describes mass movement?
The downhill flow of soil and rock resulting from gravity best describes mass movement. The downhill flow of soil and rock resulting from gravity best describes mass movement.
Which type of mass movement occurs when a fragment of rock breaks off and drops almost vertically to the ground below Weegy?
rockfall
Which criterion is not used to describe a mass movement?
The angle of the slope is NOT a criterion used to describe a mass movement event. The angle of the slope is NOT a criterion used to describe a mass movement event. This answer has been confirmed as correct and helpful.
Which of the following best describes the process of hydration?
-best describes the process of hydration. Water bonds with elements in the minerals that make up a rock, forming new substances. -best describes the process of hydration. This answer has been confirmed as correct and helpful.
Which of these mass movement events are considered a slide?
Slump is a mass movement event that is considered a slide.
What is the meaning of flow in mass movement?
Mass wasting – is movement in which bed rock, rock debris, or soil moves downslope in bulk, or as a mass, because of the pull of gravity. Flow – The debris is moving downslope as a viscous fluid. A mudflow is a flowing mixture of debris and water, usually moving down a channel.
What is the difference between a topple and a flow?
Types of mass movement A fall or topple happens when rocks and other sediments fall through the air and land at the bottom of a slope. Flows are a mixture of water, rock and sediment. They move very quickly. The slippery zone is often made up of wet sediment.
What causes a debris flow?
Debris flows can be triggered in a number of ways. Typically, they result from sudden rainfall, where water begins to wash material from a slope, or when water removed material from a freshly burned stretch of land. Another major cause of debris flows is the erosion of steams and riverbanks.
Why are post fire debris flows so dangerous?
Debris flows are typically more dangerous because they are fast-moving, triggered by short, intense periods of rainfall, and can cause both property damage and loss of life.
What type of hazard is debris?
Debris flows, sometimes referred to as mudslides, mudflows, lahars, or debris avalanches, are common types of fast-moving landslides. These flows generally occur during periods of intense rain- fall or rapid snowmelt.
What happens during debris flow movement?
Debris flows are geological phenomena in which water-laden masses of soil and fragmented rock rush down mountainsides, funnel into stream channels, entrain objects in their paths, and form thick, muddy deposits on valley floors.
How is debris collected?
Debris collection and removal tasks include picking up, clearing, separating, and removing debris. Most of these tasks are typically performed using heavy equipment; however, some manual effort can be necessary at every stage.
What is the deadliest volcanic hazard?
Pyroclastic flows can kill people up to a distance of six to nine miles (10-15km) from the volcano. Lahars are among the most far-reaching phenomena, with deadly effects over a mean distance of more than 12.5 miles (20km).