The Solid Earth - Chapter 2: Mass Wasting

Question 1

____ are the most common elements in our physical landscape

Answer 1

Slopes

Question 2

What is a spectacular example of a common geologic process called mass wasting?

Answer 2

Landslides

Question 3

The downslope movement of rock, regolith, and soil under the direct influence of gravity

Answer 3

Mass wasting

Question 4

Mass wasting is mostly a step that (follows/precedes) weathering

Answer 4

Follows

Question 5

Landforms develop as the products of weathering are removed from the places where they ___

Answer 5

originate

Question 6

What acts as a conveyer belt to carry away debris that has been transferred downslope

Answer 6

Stream

Question 7

These are created by mass waste and running water

Answer 7

stream valleys

Question 8

True or false: most river valleys are much wider than they are deep

Answer 8

True

Question 9

When the pores in sediment become filled with water, the ___ between the particles is destroyed, allowing them to slide past one another

Answer 9

Cohesion

Question 10

____ reduces the internal resistance of materials, which are then easily set in motion by the force of gravity

Answer 10

Saturation

Question 11

Water adds considerable weight to the __ of a mineral

Answer 11

mass

Question 12

The steepest angle at which material remains stable

Answer 12

angle of repose

Question 13

When the movement involves the free-fall of detached individual pieces of any size, it is termed a __

Answer 13

fall

Question 14

____ occur whenever material remains fairly coherent and moves along a well defined surface

Answer 14

slides

Question 15

This is when material moves downslope as a viscous fluid

Answer 15

Flow

Question 16

these events include rocks and debris moving at speeds of 200 km+

Answer 16

avalanches

Question 17

the downward slipping of a mass or rock or unconsolidated material moving as a unit along a curved surface

Answer 17

slump

Question 18

These occur when blocks of bedrock break loose and slide downhill

Answer 18

Rockslides

Question 19

The relatively rapid type of mass wasting that involves debris containing lots of water

Answer 19

Mudflow

Question 20

Mudflows on the slopes of volcanoes are termed ___

Answer 20

lahars

Question 21

events that form on hillsides as a result of excessive rainfall or snowmelt

Answer 21

earthslide

Question 22

The type of mass wasting that involves the gradual downhill movement of soil and regolith

Answer 22

creep

Question 23

a form of mass wasting that is common in regions underlain by permafrost

Answer 23

solitfluction

Question 24

the permanently frozen ground associated with tundra and ice cap climates

Answer 24

permafrost