processes

Question 1

hydraulic action (coastal)

Answer 1

pounding waves compress trapped air in the rocks creating an explosive blast which weakens and loosens rock fragments.

Question 2

solution

Answer 2

carbonic acid/salts in sea water dissolves rock.

Question 3

abrasion/corrosion (coastal)

Answer 3

rock fragments thrown against the headland break down the cliff face wearing away the rock.

Question 4

hydraulic action (hydrosphere)

Answer 4

compresses air into the riverbank causing materials to be dislodged.

Question 5

abrasion ( hydrosphere)

Answer 5

the force of water throws bedload against the bank causing a scouring action.

Question 6

solution (hydrosphere)

Answer 6

when acids in the water react with soluble bedrock.

Question 7

plucking

Answer 7

when ice freezes onto bedrock, pulling away loose rocks from the vallry side.

Question 8

abrasion (glaciation)

Answer 8

amgular rock embedded in the ice grinds the valley floor.

Question 9

freeze thaw weathering

Answer 9

when water in cracks in the rocks freezes, expands and contactd weakening the rock until rock fragments break off.

Question 10

longshore drift

Answer 10

zig zag movement of the waves

Question 11

swash

Answer 11

where waves push materials up the beach at an angle due to prevailing wind

Question 12

Backwash

Answer 12

The returning backwash is pulled down the beach at a right angle