Understanding Earth's Dynamics

What is the slowest type of mass movement, often imperceptible without the aid of instruments?

• Slump

• Creep

• Landslide

• Mudflow

Which type of mass movement is characterized by the downward sliding of a mass of rock or unconsolidated material along a curved surface?

• Creep

• Slump

• Landslide

• Mudflow

What is the term for a rapid movement of a large mass of earth and rocks down a hill or a mountainside?

• Creep

• Slump

• Landslide

• Mudflow

Tags

NGSS.MS-ESS3-2

Mudflows are often caused by a mixture of water and what type of earth material?

• Sand

• Gravel

• Silt

• Volcanic ash

What is the primary factor that triggers a mudflow?

• Earthquakes

• Heavy rainfall

• Volcanic eruptions

• All of the above

Tags

NGSS.MS-ESS2-5

Glacial movement is a form of mass movement. Which of the following best describes this process?

• The flow of ice within a glacier

• The sliding of a glacier over bedrock

• The melting of glaciers into water

• Both A and B

What is the term for the slow, gradual downslope movement of soil and regolith?

• Creep

• Slump

• Landslide

• Solifluction

Which of the following is NOT a contributing factor to landslides?

• Deforestation

• Earthquake vibrations

• Construction of buildings

• The planting of vegetation

Tags

NGSS.MS-ESS3-4

During which process do blocks of bedrock move down a slope, leaving a scar at the source?

• Creep

• Slump

• Rockslide

• Mudflow

What is the term for the rapid movement of a large mass of mud formed from volcanic ash and water, often following a volcanic eruption?

• Lahar

• Solifluction

• Earthflow

• Debris flow