Natural Hazards

Simple questions on natural hazards for the higher tier AQA geography exam. The card in capital letters is very important is very likely to come up in your exams - learn word for word!

What are the four sections of the earth?
Crust, Mantle, Outer Core and Inner Core
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What is the thinnest layer?
Crust
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What is the thickest layer?
Mantle
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Which layer is completely molten?
Outer Core
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Which layer is the hottest?
Inner Core
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Why do tectonic plates move?
Because of the convection currents under the ground
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What are the 3 types of plate boundaries?
Constructive, Destructive and Conservative
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What are constructive plate boundaries?
Where plates move away from each other, new crust is formed as magma rises from mantle. Have both earthquakes and volcanoes.
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What are destructive plate boundaries?
Where a oceanic crust/plate and a continental crust/plate move towards each other causing the oceanic plate to sink underneath the continental plate. Have both earthquakes and volcanoes.
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What are conservative plate boundaries?
Where plates move past each other. There are no volcanoes but the friction between the two plates means there are earthquakes.
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EXPLAIN THE DISTRIBUTION OF EARTHQUAKES AND VOLCANOES
EARTHQUAKES AND VOLCANOES OCCUR IN LONG NARROW BELTS ALONG PLATE BOUNDARIES OR MARGINS. THE MAJORITY OF EARTHQUAKES AND VOLCANOES HAPPEN ALONG THE LINES.
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Other cards in this set

Card 2

Front

What is the thinnest layer?

Back

Crust

Card 3

Front

What is the thickest layer?

Back

Preview of the front of card 3

Card 4

Front

Which layer is completely molten?

Back

Preview of the front of card 4

Card 5

Front

Which layer is the hottest?

Back

Preview of the front of card 5
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