Q2: Lesson 3 | Exogenic Processes

Question 1

PROCESSES WHICH CREATE
AND MODIFY LANDFORMS
ON THE SURFACE OF THE
EARTH

Answer 1

geomorphic processes

Question 2

Break down of rocks

Answer 2

exogenic processes

Question 3

Transport from high
energy locations to low
energy locations

Answer 3

exogenic processes

Question 4

Gravity-induced downslope

movement of rock material that
occurs without a geomorphic agent

Answer 4

mass wasting

Question 5

Break down of rocks into tiny pieces
without change in their chemical

composition

Answer 5

PHYSICAL WEATHERING

Question 6

Decomposes rock through chemical
reactions that remove ions from the

original rock

Answer 6

CHEMICAL WEATHERING

Question 7

Erosional stripping of
overlying rocks

Answer 7

*UNLOADING

Question 8

Removal of great weight
on the surface

Answer 8

*UNLOADING

Question 9

Occurs when
temperature changes
rapidly

Answer 9

*THERMAL
EXPANSION &
CONTRACTION

Question 10

Water freezes in a
crack of a rock then
expansion edges the
rock apart

Answer 10

*FREEZE-THAW
WEATHERING

Question 11

Water with dissolved
salt accumulates at
spaces and then
evaporates, and
growing salt crystals
wedge rocks apart

Answer 11

*SALT CRYSTAL

GROWTH

Question 12

Water molecules
attach to the
crystalline structure
of a mineral

Answer 12

*HYDRATION

Question 13

Expands when

hydrated, shrinks when

dehydrated

Answer 13

*HYDRATION

Question 14

Ions are released into
water or combine with
other substances to form

new materials

Answer 14

CHEMICAL
WEATHERING

Question 15

Chemical union of
oxygen atoms with
another substance to
create a new product

Answer 15

*OXIDATION

Question 16

Carbon dioxide + water
molecules =

Answer 16

carbonic
acid.

Question 17

Carbon dioxide + water
molecules = carbonic
acid. Decomposes rocks

Answer 17

*SOLUTION AND
CARBONATION

Question 18

Mineral reacts water
with to form a new
mineral that has water
as part of its crystal

structure

Answer 18

*HYDROLYSIS

Question 19

Arid climate =

Answer 19

Physical

weathering

Question 20

Humid climate =

Answer 20

Chemical weathering

Question 21

presence of joints, faults, folds, &

bedding planes

Answer 21

*STRUCTURAL
WEAKNESS

Question 22

MOVEMENT OF ROCK,
SOIL,AND REGOLITH,

DOWNWARD DUE TO GRAVITY

Answer 22

SLOPE MOVEMENT

Question 23

Slow migration but
most persistent

Answer 23

CREEP

Question 24

heaving process

Answer 24

CREEP

Question 25

Most common in high latitudes or high elevation tundra regions

Answer 25

*SOLIFLUCTION

Question 26

Weathering weakens the bonds between cliffs

Answer 26

falls

Question 27

Large rock masses that fall from a cliff face or an overhanging ledge

Answer 27

falls

Question 28

Material is pulverized (broken down into small powdery fragments) and then flows rapidly

Answer 28

*AVALANCHES

Question 29

RAPID SLIDE OF MASS OF ROCKS, DEBRIS, MUD, LAND, ALONG DOWNSLOPES

Answer 29

*SLIDES