Chapter 18

Question 1

regolith

Answer 1

soil, debris, sediment, and broken rock

Question 2

creep

Answer 2

slow, down-slope migration of soil under influence of gravity

Question 3

solifluction

Answer 3

type of soil creep that occurs in water-saturated regolith in cold climates

Question 4

slump

Answer 4

occurs when regolith suddenly drops a short distance down a slope

Question 5

mudflow or debris flow

Answer 5

rivers of rock, earth, and other debris saturated with water, can be very fast

Question 6

quick clay

Answer 6

special type of marine clay that can spontaneously change to a fluid state in a process called liquefaction

Question 7

rock slides and debris slides

Answer 7

result when a slope fails along a plane of weakness

Question 8

rockfalls

Answer 8

occur when an accumulation of consolidated rock is dislodged and falls through the air, or free-falls, due to the force of gravity

Question 9

3 primary factors of mass wasting

Answer 9

water content
material characteristics
slope steepness