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Natural Hazard - (answer)Any natural process that is a potential threat to human life and property
natural disaster - (answer)great destruction or loss of life caused by natural forces rather than by human
actions
Frequency - (answer)How many times a hazard occurs
Magnitude - (answer)Greatness of size, strength, or importance
primary effect - (answer)Immediate impacts caused by the hazard itself
Secondary effects - (answer)Caused as a result of primary hazards
Immediate responses - (answer)how people react as the disaster happens and in the immediate
aftermath
Long term responses - (answer)Later reactions that occur in the weeks, months and years after the
event.
Examples of secondary effects - (answer)- Shortage of clean water - Lack of proper sanitation, Diseases
spread easier
- Damaged crops - Food shortages
- Weaker economy - Unenployment and Reconstruction can be very expensive
Examples of primary effects - (answer)- Buildings and roads are destroyed
- Crops and water supplies can be damaged or contaminated
- People are injured or killed when buildings collapse
, Geography GCSE AQA; The Urban world EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS
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Crust - (answer)Earth's outer layer
Mantle - (answer)the layer of the semi- molten earth between the crust and the core.
tectonic plates - (answer)Large movable plates under the Earth's surface.
continental crust - (answer)the relatively thick part of the earth's crust that forms the large landmasses.
It is generally older and more complex than the oceanic crust.
oceanic crust - (answer)thinner, more dense, younger crust making ocean floor
plate boundary - (answer)the region where two tectonic plates are in contact
Destructive margin - (answer)Where two plates are moving towards each other.
Where an oceanic plate is forced down into the mantle and destroyed.
This often creates volcanoes.
Constructive margin - (answer)Where two plates are moving away from each other.
Magma rises from the mantle to fill the gap and cools, creating new crust.
Conservative margin - (answer)Where two plates are moving sideways past each other, or are moving in
the same direction but at different speeds.
Crust isn't created or destroyed.
Volcanoes occur at... - (answer)Destructive and Constructive plate margins
Earthquakes occur at... - (answer)All three types of plate margins