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Mass Movement
Chapter 9; Mass Movement
Question | Answer |
---|---|
What is Mass movement? | The process by which loose, weathered material such as rock and mud is moved downslope under the influence of gravity. |
What is the loose material collectively known as? | Regolith. |
Name a slow type of mass movement. | Soil Creep. |
Name a fast type of mass movement. | Landslide or Lahar/Mudflow. |
Why is the water content in mass movement so important? | The water content controls the speed of mass movement. Mass movement in saturated soils is rapid and can cause destruction. |
What is overgrazing? | When too many animals graze the land, damaging its structure. |
What is subsistence farming? | Farming that is not profitable and is done just to provide enough food for a family. |
What is consolidated? | Made firm, strengthened, brought together in a single whole. |
What is unconsolidated? | Made loosened, brought together in a single whole. |
What are the factors that affect the process of mass movement? | Slope, Water Content, Slope Material, Vegetation, Human activity and Natural disasters/Tectonic plates. |