UK Landscapes (Geology) : Physical Processes

Question 1

why does biological weathering occur?

Answer 1

because of plant roots and animals breaking down rock

Question 2

why does chemical weathering occur?

Answer 2

when chemicals lead to the disintegration of rocks through reactions.

Question 3

what is an example of chemical weathering?

Answer 3

carbonation

Question 4

why does mechanical / physical weathering occur?

Answer 4

when climates of an area break down rock without change to the minerals that form rock

Question 5

what are the four types of mass movement?

Answer 5

landslide, rotational slip, mudflow and rockfall

Question 6

what is a landslide?

Answer 6

rocks slide along slip / bedding plane

Question 7

what causes a landslide?

Answer 7

due to pressure, gravity and saltation of the bedding plane

Question 8

what is a rotational slip?

Answer 8

slumping of saturated soil and weak rock along a curved surface

Question 9

what is a mudflow?

Answer 9

saturated soil and sediments flow down because of gravity

Question 10

what is a rock fall?

Answer 10

rock breaks away from cliff due to weathering

Question 11

what can a rock fall lead to?

Answer 11

a dangerous collapse