Denudation

Question 1

Two types of weathering?

Answer 1

• Mechanical

- Chemical

Question 2

Three types of erosion?

Answer 2

• Moving ice
• Moving water
• Moving wind

Question 3

How does freeze-thaw action work?

Answer 3

• Water seeps into the crack
• When the temperature goes below freezing the water freezes and expands putting pressure on the rock.
• The rock becomes weak and a piece of the rock breaks off. The rock is broken into small pieces called scree

Question 4

How does carbonation occur?

Answer 4

As rain forms it takes in carbon dioxide. The rainwater mixes with the carbon dioxide to form a weak carbonic acid. This acid has a huge effect on limestone.

Question 5

What is an example of a karst landscape?

Answer 5

Burren Co Clare

Question 6

What are the blocks of limestone in a limestone pavement called?

Answer 6

Clint

Question 7

What are the grooves in a limestone pavement called?

Answer 7

Grikes

Question 8

What are swallow holes?

Answer 8

A river that begins in a non-limestone area that disappears underground when it reaches a limestone surface.

Question 9

What are stalagmites?

Answer 9

A build up of pure limestone called calcite that builds up on the ground

Question 10

What is a stalactite?

Answer 10

A build up of pure limestone called calcite that hangs from the ceiling

Question 11

What is a pillar?

Answer 11

When stalagmites and stalactites connect