Types of Coastlines

Question 1

which is the most common type of coastline in the world?

Answer 1

rocky coast

Question 2

Rocky coasts consist of…

Answer 2

a wave-cut cliff

a lower bench area

Question 3

the lower bench area of rocky coasts forms from…

Answer 3

material that erodes off of the cliff and accumulates and is eroded and taken away by wave action.

Question 4

what are some features/characteristic landforms of rocky coasts?

Answer 4

arches, stacks, caves, notches

Question 5

features of rocky coasts form by _____ action and ______

Answer 5

wave, erosion

Question 6

As arches further erode they become…

Answer 6

stacks

Question 7

Waves action is constantly undercutting cliffs which causes….

Answer 7

collapses and landslides that accumulate on the benches

Question 8

where do collapses and landslides accumulate?

Answer 8

on the benches

Question 9

Coastal rocky cliffs erode at the _____ and cause _______

Answer 9

base, landslides

Question 10

Earthquakes can also trigger…

Answer 10

landslides

Question 11

Landslides on cliff shorelines can give rise to…

Answer 11

giant waves

Question 12

Beaches consists of wave-washed _______ along a coast

Answer 12

sediment

Question 13

barrier islands are formed along…

Answer 13

lowland coasts

Question 14

what are some ways shoreline erosion mitigated?

Answer 14

sea walls
breakwaters
groins

Question 15

where do delta coasts form?

Answer 15

where a river empties out into a larger body of water

Question 16

In deltas is there a lot of sediment deposited?

Answer 16

yes

Question 17

what is the predictable pattern of delta deposition?

Answer 17

courser, larger sediment deposit and settle first, smaller last

Question 18

What are the four types of coastlines?

Answer 18

rocky coasts, beaches, barrier islands, deltas

Question 19

what are reefs?

Answer 19

hard structures built on a shallow ocean floor

Question 20

Reefs are hard _______ build on a _______ ocean floor

Answer 20

structures, shallow

Question 21

what are reefs built from?

Answer 21

the shells of tiny animals called polyps

Question 22

reefs are built from the shells of tiny animals called _____

Answer 22

the shells of tiny animals called polyps

Question 23

what are polyp shells made of?

Answer 23

limetone

Question 24

what are the two types of reefs?

Answer 24

barrier reefs

fringing reefs

Question 25

Barrier reefs are _______ from land by a lagoon

Answer 25

separated

Question 26

What are barrier reefs separated from land by??

Answer 26

lagoons

Question 27

Fringing reefs form coastlines that…

Answer 27

closely border the adjacent land

Question 28

which reef forms closer to the land?

Answer 28

fringing reefs

Question 29

reefs can only exist in water between ___ and ___ degrees Celsius

Answer 29

18 30

Question 30

where are reefs often found?

Answer 30

in places where deep sea upwellings currents provide ample nutrients for the reef

Question 31

reefs play important ______ and ______ roles

Answer 31

biological, environmental

Question 32

reefs can support a ______ of species

Answer 32

diversity

Question 33

coral reefs enable recycling of ______ in coastal areas?

Answer 33

nutrients

Question 34

barrier islands can protect…

Answer 34

ports and other economic structures built behind them