Erosion

Question 1

What is Coastal Erosion

Answer 1

The break down and removal of rock

Question 2

Name the 4 types of erosion

Answer 2

1. Hydraulic Power
2. Attrition
3. Abrasion
4. Solution

Question 3

How does Hydraulic Power Erode the coastline?

Answer 3

It is the sheer force of the water against the coast.
The waves enter the cracks in the cliff
They compress the air in the crack
Air is trapped and the rocks break
This is repeated continuously

Question 4

What is Attrition Erosion?

Answer 4

When Rocks that the sea carries knock against each other. This then cause the rocks to break down into smaller rounded particles

Question 5

What is Coastal Abrasion?

Answer 5

The coast is worn down by materials carried by the waves - like sandpaper.
Waves throw these particles against the rock at high power. over time the coast becomes smooth

Question 6

What is Coastal Solution Erosion?

Answer 6

This is the Chemical action of sea water. The acids in the salt water slowly dissolve rocks on the coast.

Question 7

What rock type dissolve by acids on the coast?

Answer 7

Limestone & Chalk

Question 8

What things will affect Erosion on the coast

Answer 8

Rock Type
Wave Type
Angle of the Slope
Human Factors
Fetch
Shape of the Coastline
Wind Speed & Weather conditions