Chapter 10- The Work Of The Sea Flashcards

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1
Q

How does the sea shape the coastline?

A

Through erosion, transport and deposition.

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2
Q

How do waves erode?

A

They erode by hydraulic action, abrasion and attrition.

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3
Q

What is hydraulic action?

A

The force of the waves.

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4
Q

What is abrasion?

A

Using its load to erode the coast.

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5
Q

What is attrition?

A

Wearing down the load, rocks are made smaller and smoother.

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6
Q

Name 7 landforms caused by sea erosion.

A

Bays and headlands, sea cliffs, sea caves, arches, sea stacks, stumps, blowholes.

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7
Q

How does the sea transport its load?

A

Using awash and backwash.

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8
Q

What occurs during longshore drift?

A

Sea transports its material diagonally along the coast. Controlled by groynes.

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9
Q

Name 5 features caused by sea deposition.

A

Beaches, spits, bars, lagoons, tombolos.

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10
Q

Name 5 ways the sea helps people.

A

Tourism, oil and gas deposits, recreation, ports, the fishing industry.

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11
Q

Name 2 ways the sea hinders people.

A

Coastal erosion, flooding.

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12
Q

How do people try to protect the coast from erosion?

A

Using sea walls, gabions, rock armour, groynes, marram grass.

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