Chapter 10 The Work Of The Sea

Question 1

How does the sea erode?

Answer 1

(Define)
Hydraulic action
Attrition
Abrasion

Question 2

What landforms are made by the sea?

Answer 2

Bays and headlands
Sea caves, arches, sea stacks, blowholes
Sea cliffs

Question 3

How are bays and headlands formed?

Answer 3

When the sea erodes a coastline with bands of hard and soft rock.
The soft rock forms the bay and the hard rock forms the headland

Question 4

How are sea cliffs formed?

Answer 4

The waves undercut the cliff with hydraulic action and abrasion.
A wave cut notch is formed. The face of the cliff falls down. A wave cut platform takes place.

Question 5

How are arches etc made?

Answer 5

Joints and faults are weaknesses in the rock. Cracks appear. They are widened into caverns. Arches appear when two caves back to back on a headland come together. Sea stacks are formed when the arch collapses which shorten into sea stumps

Question 6

What do waves do?

Answer 6

They erosion, deposition,transportation