Geomorphological Processes

Question 1

What are the three types of weathering?

Answer 1

Physical,Chemical,Biological

Question 2

Give 2 examples of Physical weathering.

Answer 2

Rain
Wind

Question 3

Give 2 examples of Chemical weathering.

Answer 3

Rust
Acid Rain

Question 4

Give 2 examples of Biological weathering

Answer 4

Roots
Lichen
Humans
Animals

Question 5

What is Physical weathering?

Answer 5

This is the breakdown of rock by mechanical means. This could be wetting and drying, heating and cooling, or freezing and thawing.

Question 6

What is Freeze-Thaw weathering

Answer 6

This occurs when water gets into a crack in the rock, the it freezes and expands then thaws and contracs. After this happens lots it breaks down into skree (little bits of rock)

Question 7

What is onion weathering

Answer 7

Onion skin weathering is another type of physical weathering. It happens in places where it is very hot in the day and cold at night, e.g. deserts. The rock expands in the heat of day time but contracts in the cold of night. The rock peels off in layers.

Question 8

What is Chemical weathering

Answer 8

This is the breakdown of rock when some chemical change takes palce.

Question 9

What is it called when acid in rainwater attacks limestone rock and dissolves it?

Answer 9

This is called carbonation.

Question 10

What is Biological weathering

Answer 10

This is due to the actions of plants or animals/humans

Question 11

What is Weathering

Answer 11

Weathering is the breakdown of rock in one place.

Question 12

What is Erosion

Answer 12

Erosion is the breakdown and removal of rock.

Question 13

What is the difference between weathering and erosion?

Answer 13

Erosion is the breadown AND removal of rock, whereas, weathering is JUST the breakdown of rock.