Physical processes which affect the coast

Question 1

What is mechanical weathering? (Freeze Thaw)

Answer 1

water seeking into the cracks of rocks, threezing and extending to destroy the rocks

Question 2

What is chemical weathering?

Answer 2

the interaction of rock with mineral solutions to change the composition of rocks. In this process, water interacts with minerals to create various chemical reactions and transform the rocks.

Question 3

what is biological weathering?

Answer 3

plant roots seeping into the rocks and creating a bigger and bigger cracks, before eventually breaking the cliff.

Question 4

what are the 3 types of mass movement?

Answer 4

• slumping
• landslide
• rock fall

Question 5

explain these types of coastal erosion:

1-hydraulic action
2-abrasion
3-attrition
4-solution

Answer 5

1-water compressing air into cracks.
2-rocks carried by waves to destroy cliffs.
3-rocks becoming smaller and rounded due to erosion.
4-soluble particles transported by constructive waves.

Question 6

explain the four types of coastal transportation:

1-traction
2-saltation
3-suspension
4-solution

Answer 6

1-boulders getting smaller by banging of eachother
2-repeatedly bouncing of the sea floor
3-little pebbles swimming around
4-fine dist like particles floating through the ocean

Question 7

what is coastal deposition?

Answer 7

when the sea transports materials to a different area from where it originated

Question 8

what is longshore drift?

Answer 8

waves moving sand in a 45° angle