Ges 110 Exam 2 141-167

Front 1

The mechanism of wind erosion in which loose particles of sand and dust are picked up and removed, leaving behind only coarser particles, is called?

Back 1

Deflation

Front 2

Foredunes are critical to the preservation of the integrity of many beaches, but they must maintain

Back 2

grass with a few other species of plants (vegetation) on their surfaces to remain stable.

Front 3

How does the ability of wind to transport materials compare to other mechanism in the Earth system?

Back 3

greater than liquid because of the greater density of the atmosphere

Front 4

Which of the following conditions would limit the effectiveness of wind erosion?

Back 4

Dislodge mineral matter from surfaces of unweathered rock from moist bclay rich soil or from soil bound by a dense plant cover.

Front 5

Why are smaller particles of sedimentary material often hard for wind to move?

Back 5

they are cohesive

Front 6

What term best describes the individual lifting and transportation of individual particles of particles by wind?

Back 6

Aeolian transportation

Front 7

Desert pavements are best characterized by:

Back 7

closely fitted rock fragments

Front 8

When wind-blown particles act to sandblast a natural surface, this is best described as _____

Back 8

WIND ABRASION

Front 9

The reduction of land-surface elevation due to the lifting and removal of particles by wind is termed ________, while the aggressive act of sandblasting an exposed surface by the action of wind is described as ____________.

Back 9

saltation,
WIND ABRASION

Front 10

Sometimes rocks are grooved and polished by wind driven abrasion, these examples are often referred to as

Back 10

Aeolian Erosion, ventifact

Front 11

A ___________ may result from the suspension of fine particles of sediment by wind over significant distances.

Back 11

DUST STORMS

Front 12

Complete the following statement with the correct terms. Clay is ______ to lift from a surface, and/but ______ to keep suspended in the air.

Back 12

difficult
easy

Front 13

Small scale crescent-shaped dunes are described as:

Back 13

transverse dunes

Front 14

Crescent-shaped dunes that are stabilized by vegetation growth are called:

Back 14

PARABOLIC

Front 15

The largest scale sand dunes are called:

Back 15

star dunes

Front 16

Loess deposits are typically composed of:

Back 16

SILT AND CLAY

Front 17

In which of the following regions of the US is wind driven erosion most effective?

Back 17

Deflation zones California Mojave Desert/ SW US

Front 18

Corals have a symbiotic relationship with _______

Back 18

algae

Front 19

The process by which wave energy pulls material back down the shoreface after the swash is referred to as ________

Back 19

Backwash

Front 20

A long, narrow, sandy island lying offshore and parallel to a lowland coast is a ________.

Back 20

barrier island

Front 21

Tall, offshore spires rising up from the water in front of marine cliffs are typically referred to as ________.

Back 21

stacks

Front 22

Wave-washed sediment along a coast forms a ______

Back 22

SHORELINE/Beach

Front 23

What part of Mexico has some of the most extensive karst geography in the world?

Back 23

Baja California and Yucatan Peninsula

Front 24

What proportion of the Earth’s water is fresh?

Back 24

3% is Fresh Water and 97% Salty.

Front 25

What is the oldest lake in the world?

Back 25

(Lake Baikal).

Front 26

What is the largest lake in the world?

Back 26

Caspian Sea)

Front 27

Largest salt water

largest fresh water

Back 27

Caspian Sea)

(Lake Baikal).

Front 28

Landscapes with a large amount of relief tend to increase the _____ of materials, causing them to have more _________ energy when they are weathered and transported downhill.

Back 28

erosion height;
kinetic

Front 29

In areas of high rainfall where soil is thin over bedrock and in areas where the ground is frozen to depth, slow slurry flows can occur through a process called

Back 29

-Solifluction