CH 2: Mass movements and human responses

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What is another term for mass movement?

Rock rolling

Gravity pull

Erosion

Mass wasting (correct)

What are the primary factors influencing mass movement?

Gravity and slope stability (correct)

Wind and rain

Temperature and precipitation

Sunlight and humidity

How can seismic activities trigger mass movement?

By stabilizing slopes

By reducing soil moisture

By enhancing soil cohesion

By altering slope stability (correct)

Which human activities can increase the vulnerability of slopes to mass movement?

Excavation and construction Signup and view all the answers

What happens to soil cohesion during heavy rains?

It reduces Signup and view all the answers

How does undercutting by natural forces impact slopes?

Can lead to slope collapse Signup and view all the answers

What role does volcanic activity play in mass movement?

Destabilizes slopes through loose volcanic material deposition Signup and view all the answers

'Geomorphology' is the study of:

Landforms and the processes shaping them Signup and view all the answers

What aspect of a slope does gravity affect in mass movement?

Movement only Signup and view all the answers

Why is it important to understand the nuances of mass movement?

To mitigate impacts on landscapes and ecosystems Signup and view all the answers

What type of mass movement is characterized by the imperceptibly slow downhill movement of soil?

Soil Creep Signup and view all the answers

Which type of mass movement involves rapid flows of mud usually initiated in arid or semi-arid areas following intense rainfall?

Mud Flows Signup and view all the answers

What is the primary cause of rock falls according to the text?

Weathering Signup and view all the answers

Which impact of mass movement involves the redistribution of materials from higher to lower elevations?

Alteration of landscapes Signup and view all the answers

How do safety nets and barriers help mitigate the effects of mass movement?

Catch falling rocks or debris Signup and view all the answers

What strategy aims to reduce water infiltration into slope materials to lower the risk of slope failure?

Drainage Systems Signup and view all the answers

Which method provides physical support to unstable slopes, preventing collapse?

Retaining Walls Signup and view all the answers

What is the characteristic of solifluction?

Slow movement of soil downhill globally on sloped terrains Signup and view all the answers

What do rock bolts primarily stabilize according to the text?

Rock faces Signup and view all the answers

What does mass movement fundamentally alter, impact, and often affect?

Landscapes, ecosystems, and human infrastructures Signup and view all the answers

Which event can significantly destabilize slopes by causing rapid movement of earth materials?

Seismic activities Signup and view all the answers

How can heavy rains contribute to mass movement?

By saturating soils and reducing their internal cohesion Signup and view all the answers

What can modifications such as excavation, construction, and deforestation do to the vulnerability of slopes?

Increase it Signup and view all the answers

Which natural process can lead to the erosion of the base of a slope causing its collapse?

Undercutting by waves or river action Signup and view all the answers

What is the primary way volcanic activity can lead to slope destabilization?

Depositing loose volcanic material Signup and view all the answers

In which areas are rapid mud flows usually initiated following intense rainfall?

Arid or semi-arid areas Signup and view all the answers

What distinguishes Solifluction from other types of mass movement?

It involves the slow flow of water-saturated soil over impermeable materials in cold climates. Signup and view all the answers

Which method specifically aims to prevent detachment and fall of rock faces?

Retaining Walls Signup and view all the answers

What environmental impact is a result of the redistribution of materials from higher to lower elevations due to mass movement?

Contribution to natural erosion processes Signup and view all the answers

What distinguishes Soil Creep from other types of mass movement?

It is characterized by the imperceptibly slow movement of soil downhill. Signup and view all the answers

Which type of mass movement is primarily caused by weathering and seismic activities?

Rock Falls Signup and view all the answers

In which environments do Mud Flows usually initiate following intense rainfall?

Arid or semi-arid areas Signup and view all the answers

What is the primary purpose of Safety Nets and Barriers used in mass movement mitigation?

To catch falling rocks or debris Signup and view all the answers

How do Rock Bolts contribute to mass movement mitigation?

By stabilizing rock faces to prevent detachment and fall Signup and view all the answers

What distinguishes mud flows from landslides?

Speed of movement Signup and view all the answers

How does solifluction differ from rock falls?

Material composition Signup and view all the answers

What is a key factor that can lead to the formation of natural dams and lakes?

Blockage of rivers by landslide debris Signup and view all the answers

What is a significant difference between slumps and soil creep?

Direction of movement Signup and view all the answers

What sets rock bolts apart from retaining walls in mass movement mitigation?

Method of stabilization Signup and view all the answers

Which type of mass movement is most likely to occur in tundra environments?

Solifluction Signup and view all the answers

How do safety nets and barriers differ from drainage systems in mass movement mitigation?

Safety nets and barriers focus on physical protection, drainage systems focus on water control. Signup and view all the answers

Vegetation planting contributes to mass movement mitigation by:

Stabilizing slopes through root systems. Signup and view all the answers

Rock falls primarily result from:

Weathering and seismic activities. Signup and view all the answers

How does seismic activity contribute to mass movement?

By altering the stability of slopes rapidly Signup and view all the answers

What is a common impact of heavy rains on soil in relation to mass movement?

Saturating soils and reducing cohesion Signup and view all the answers

How can volcanic activity lead to slope destabilization according to the text?

By depositing loose volcanic material on slopes Signup and view all the answers

What impact does undercutting by natural forces have on slopes?

Leads to slope collapse Signup and view all the answers

What role do human activities like deforestation play in slope vulnerability?

Increasing the vulnerability of slopes Signup and view all the answers

How do mass movements influence ecosystems?

By altering landscapes fundamentally Signup and view all the answers

What is a significant outcome of mass movement on human infrastructures?

Impact and often affect them Signup and view all the answers

What is a common consequence of rapid landslides in terms of human impact?

Economic damages to agricultural lands Signup and view all the answers

How do mud flows differ from rock falls?

Mud flows are initiated by volcanic activity. Signup and view all the answers

What role do safety nets and barriers play in mass movement mitigation strategies?

Stabilizing rock faces by mechanically reinforcing them Signup and view all the answers

Which type of mass movement involves the imperceptibly slow downhill movement of soil globally?

Solifluction Signup and view all the answers

How can rock bolts contribute to mass movement mitigation strategies?

Stabilizing rock faces by mechanically reinforcing them Signup and view all the answers

What is the primary factor that can destabilize slopes by causing rapid movement of earth materials?

Earthquakes Signup and view all the answers

How do heavy rains contribute to mass movement?

By saturating soils, reducing their internal cohesion and increasing their weight Signup and view all the answers

What impact does undercutting by natural forces have on slopes?

Causes them to collapse Signup and view all the answers

How can volcanic activity lead to slope destabilization?

Through the deposition of loose volcanic material or melting of snow and ice Signup and view all the answers

What distinguishes Solifluction from other types of mass movement?

It involves the imperceptibly slow downhill movement of soil Signup and view all the answers

CH 2: Mass movements and human responses

Podcast Beta

Questions and Answers

What is another term for mass movement?

What are the primary factors influencing mass movement?

How can seismic activities trigger mass movement?

Which human activities can increase the vulnerability of slopes to mass movement?

What happens to soil cohesion during heavy rains?

How does undercutting by natural forces impact slopes?

What role does volcanic activity play in mass movement?

'Geomorphology' is the study of:

What aspect of a slope does gravity affect in mass movement?

Why is it important to understand the nuances of mass movement?

What type of mass movement is characterized by the imperceptibly slow downhill movement of soil?

Which type of mass movement involves rapid flows of mud usually initiated in arid or semi-arid areas following intense rainfall?

What is the primary cause of rock falls according to the text?

Which impact of mass movement involves the redistribution of materials from higher to lower elevations?

How do safety nets and barriers help mitigate the effects of mass movement?

What strategy aims to reduce water infiltration into slope materials to lower the risk of slope failure?

Which method provides physical support to unstable slopes, preventing collapse?

What is the characteristic of solifluction?

What do rock bolts primarily stabilize according to the text?

What does mass movement fundamentally alter, impact, and often affect?

Which event can significantly destabilize slopes by causing rapid movement of earth materials?

How can heavy rains contribute to mass movement?

What can modifications such as excavation, construction, and deforestation do to the vulnerability of slopes?

Which natural process can lead to the erosion of the base of a slope causing its collapse?

What is the primary way volcanic activity can lead to slope destabilization?

In which areas are rapid mud flows usually initiated following intense rainfall?

What distinguishes Solifluction from other types of mass movement?

Which method specifically aims to prevent detachment and fall of rock faces?

What environmental impact is a result of the redistribution of materials from higher to lower elevations due to mass movement?

What distinguishes Soil Creep from other types of mass movement?

Which type of mass movement is primarily caused by weathering and seismic activities?

In which environments do Mud Flows usually initiate following intense rainfall?

What is the primary purpose of Safety Nets and Barriers used in mass movement mitigation?

How do Rock Bolts contribute to mass movement mitigation?

What distinguishes mud flows from landslides?

How does solifluction differ from rock falls?

What is a key factor that can lead to the formation of natural dams and lakes?

What is a significant difference between slumps and soil creep?

What sets rock bolts apart from retaining walls in mass movement mitigation?

Which type of mass movement is most likely to occur in tundra environments?

How do safety nets and barriers differ from drainage systems in mass movement mitigation?

Vegetation planting contributes to mass movement mitigation by:

Rock falls primarily result from:

How does seismic activity contribute to mass movement?

What is a common impact of heavy rains on soil in relation to mass movement?

How can volcanic activity lead to slope destabilization according to the text?

What impact does undercutting by natural forces have on slopes?

What role do human activities like deforestation play in slope vulnerability?

How do mass movements influence ecosystems?

What is a significant outcome of mass movement on human infrastructures?

What is a common consequence of rapid landslides in terms of human impact?

How do mud flows differ from rock falls?

What role do safety nets and barriers play in mass movement mitigation strategies?

Which type of mass movement involves the imperceptibly slow downhill movement of soil globally?

How can rock bolts contribute to mass movement mitigation strategies?

What is the primary factor that can destabilize slopes by causing rapid movement of earth materials?

How do heavy rains contribute to mass movement?

What impact does undercutting by natural forces have on slopes?

How can volcanic activity lead to slope destabilization?

What distinguishes Solifluction from other types of mass movement?

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