Types of erosion

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Corrasion/Abrasion
Stones, pebbles and sand are picked up by the waves and hurled at the base of the cliff. The load is used as a grinding tool. A wave-cut notch may form.
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Attrition
Stones and pebbles collide in the sea knocking pieces off each other. In this way they become smaller, smoother and rounder. Eventually they become particles of sand
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Solution
Some rocks like limestone and chalk slowly dissolve in seawater. e.g.chalk of old Harry and Dover cliffs
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Hydraulic Action
The force of moving water sweeps air into the cracks of rock. When the wave of retreats the air expands, often explosively. Rocks then shattered e.g. in Atlantic storms the pressure can be huge. Undercutting takes place on cliffs
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Capital of Spain
Madrid
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Other cards in this set

Card 2

Front

Stones and pebbles collide in the sea knocking pieces off each other. In this way they become smaller, smoother and rounder. Eventually they become particles of sand

Back

Attrition

Card 3

Front

Some rocks like limestone and chalk slowly dissolve in seawater. e.g.chalk of old Harry and Dover cliffs

Back

Preview of the back of card 3

Card 4

Front

The force of moving water sweeps air into the cracks of rock. When the wave of retreats the air expands, often explosively. Rocks then shattered e.g. in Atlantic storms the pressure can be huge. Undercutting takes place on cliffs

Back

Preview of the back of card 4

Card 5

Front

Madrid

Back

Preview of the back of card 5

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