Chapter 10 Test - Mass Wasting

What is mass wasting?

• The lateral movement of rock and soil material due to wind

• The circular movement of rock and soil material due to water

• The downhill movement of rock and soil material due to gravity

• The uphill movement of rock and soil material due to gravity

Tags

NGSS.MS-ESS2-2

Which of the following is a common trigger for mass-wasting events?

• Drought conditions

• Calm weather

• Rapid snowmelt

• Low humidity

What is the angle of repose?

• The steepest angle at which rock and soil material is stable and will not move downslope

• The angle at which water flows uphill

• The angle at which wind moves sand

• The angle at which the sun sets

What is a rock fall?

• A type of volcanic eruption

• A gradual accumulation of soil on a flat surface

• An abrupt rock movement that detaches from steep slopes or cliffs

• A slow movement of soil downhill

Tags

NGSS.MS-ESS3-2

Which of the following is NOT a type of mass wasting?

• Slide

• Flow

• Creep

• Erosion

What is the primary factor that influences shear strength in sedimentary rocks?

• Color of the rock

• Magnetic properties

• Planes of weakness

• Age of the rock

What is the main scarp in a landslide?

• The area with the most vegetation

• The midpoint of the landslide

• The uphill extent of the landslide

• The lowest point of the landslide

Which of the following is a method to mitigate landslides?

• Removing all vegetation

• Slope reinforcement with steel bolts

• Oversteepening the slope

• Increasing water content in the slope

What is a debris flow?

• A type of earthquake

• A volcanic eruption

• A rapid movement of loose material mixed with water

• A slow movement of soil downhill

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

What is the primary material involved in a rock slide?

• Bedrock

• Soil

• Water

• Sand