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Geography - coasts > Weathering > Flashcards

Weathering Flashcards

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1
Q

what does sub aerial mean?

A

Non marine (not involved with sea)

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2
Q

What is weathering?

A

The breakdown of rocks in situ

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3
Q

Example of physical weathering?

A

Freeze thaw weathering

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4
Q

What is salt crystallisation?

A

Water gets in cracks - evaporates - salt left behind - expands and exerts pressure

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5
Q

What is biological weathering?

A

Paddocks and sea weed stuck to rocks and breaks off

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6
Q

What is chemical weathering?

A

A change in chemical composition of rock which weakens it

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7
Q

What is carbonation?

A

Acidic rain water dissolves limestone

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Geography - coasts (30 decks)

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