Coasts Flashcards

1
Q

What is Coastal Attrition

A

Stones and sand in the waves or on the beach collide.

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2
Q

What is Coastal Hydraulic Action?

A

Water seeps into cracks in a cliff and the pressure erodes the rock

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3
Q

What is Coastal Solution?

A

When some rocks are dissolved in saltwater easily

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4
Q

What is Coastal Corrasion?

A

Stones and sand in the waves erode cliffs and headlands

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5
Q

What is Coastal Longshore Drift?

A

The direction of the transportation (depending on the wind and waves)

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6
Q

What is Coastal Backwash?

A

Pebbles and sand are being pulled back down a beach by waves.

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7
Q

What is Coastal Swash?

A

Pebbles and sand washing up onto a beach by waves.

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8
Q

What is Coastal Deposition?

A

The dropping of material (load). Caused by the change in waves’ ability to transport load.

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9
Q

List four factors that would affect the speed of erosion

A

Rock type;
Stucture;
Shelter from wind;
Depth of water

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10
Q

Soft rock would make would erode (Slower/Easily)

A

Soft rock would make would erode easily.

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11
Q

Rocks with many joints and cracks erode (Slower/Easily)

A

Rocks with many joints and cracks erode easily.

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12
Q

Sheltered coast erode (Slower/Easily) as there are fewer waves.

A

Sheltered coast erode slower as there are fewer waves.

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13
Q

Deep water has (More/Less) power to erode as waves are (Bigger/Smaller).

A

Deep water has more power to erode as waves are bigger.

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14
Q

The sea can erode highlands. (T/F)

A

False

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15
Q

Highlands are hard rock? (T/F)

A

True

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16
Q

What is a wave cut platform.

A

A platform of rocks that protects the cliff from further erosion.

17
Q

How are spits formed.

A

Spits are formed where the coastline changes direction.

18
Q

List ways to slow erosion.

A

Boulders and walls at the base of the cliff to stop undercutting;
Groynes to stop Longshore Drift and to trap sand on beach;
Using drainage to stop cliffs becoming saturated and unstable.