Erosion Processes

Question 1

Freeze-thaw weathering is an example of what?

Answer 1

Physical weathering (also known as mechanical weathering)

Question 2

What is biological weathering?

Answer 2

When rock is split or broken down by animals or plants.

Question 3

Chemical weathering

Answer 3

When atmospheric chemicals combine with water to form weak acids that can dissolve rock.

Question 4

What does the geology of Malham Cove mainly consist of?

Answer 4

Limestone, which is made of crushed coral shells that are over 300 million years old.

Question 5

Anticline

Answer 5

A ridge or fold of rock with many layers.

Question 6

Escarpments

Answer 6

Higher areas of resistant rocks like chalk.

Question 7

Abrasion

Answer 7

Rocks and sediment in waves grind cliff surfaces like sandpaper.

Question 8

Attrition

Answer 8

Waves cause rocks to crash into each other and become smooth.

Question 9

Solution

Answer 9

Acid in seawater dissolves rock.

Question 10

Hydraulic action

Answer 10

Air can become trapped by water and is compressed into cracks in the rock. This weakens and eventually breaks the rock.