1.1 - Introduction to Coasts

Question 1

What does the littoral cell consist off?

Answer 1

▪Offshore
▪ Nearshore
▪ Foreshore
▪ Backshore
▪ Coast/land

Question 2

What are the costal typology traits for coastal plains?

Answer 2

Land gradually slopes
Deposited sediment (e.g. sand dunes /
mudflats / beaches)
Sometimes called alluvial coasts

Question 3

Given an example of a secondary coast?

Answer 3

Slapton

Question 4

Fill in the blank…

There’s ……………….. happening on the backshore

Answer 4

weathering / rock-breakdown

Question 5

Fill in the blank…

There’s constructive/destructive waves on the ……..

Answer 5

foreshore/nearshore

Question 6

How can the coastal zone be effected by humans ?

Answer 6

Rivers are being dredged – more shipping
Offshore areas are dredged – more sand / gravel
Coastal defences are built

Question 7

Zavodovski Island has the worlds largest penguin colonies

True or false ?

Answer 7

True

Question 8

Given an example of a primary coast?

Dominated by land-based processes, e.g.
deposition from rivers / new land formed by
volcanic lava

Answer 8

Zavodovski Island

Question 9

What type of human activities can effect the littoral zone processes ?

Answer 9

Dredging of rivers to make them deeper for shipping
Dredging of offshore areas to get sand and gravel for construction
Building of coastal defences

Question 10

What are the three types of rock breakdowns

Answer 10

Biological and Chemical and Physical breakdown

Question 11

Waves can be either ……… or ……..

Answer 11

Destructive and constructive

Question 12

What process helps to move sediment along the beach?

Answer 12

Long shore drift

Question 13

How does a wave form ?

Answer 13

Initially in open water, as
energy transferred from air to
water
Shelving increases friction and
wave breaks