Unit 1A - the challenge of natural hazards (1. natural hazards) Flashcards

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1
Q

what is a natural hazard?

A

it is a natural event that has a huge social impact.

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2
Q

examples of natural hazards

A

landslides, floods, storms, earthquakes, droughts, volcanic eruptions, tsunami

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3
Q

how many people are killed each year from natural hazards

A

100,000

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4
Q

what is hazard risk

A

chance or probability of being affected by a natural event.

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5
Q

state the factors that affect risk of natural hazards

A

urbanisation, climate change, farming, poverty

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6
Q

how does urbanisation effect hazard risk

A

over 50 percent of the worlds population live in cities. The worlds most densely populated cities are at great risk of natural events.

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7
Q

how does poverty effect hazard risk

A

poorer parts of the world may live in poverty and therefore do not have the facilities to even know they are in a high risk area

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8
Q

how does climate change effect hazard risk

A

warmer parts of the world will have more energy meaning more intense storms. climate change may also cause floods.

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9
Q

how does farming effect hazard risk

A

when rivers flood fertile silt is produced on its flood plain which is good for farming. however people living on floodplains may be prone to flooding.

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10
Q

what are the types of natural hazards

A

geological and meteorlogical

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11
Q

what are geological hazards

A

caused by land and tectonic processes e.g. landslides, earthquakes

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12
Q

what are meteorlogical hazards

A

caused by weather and climate, tropical storms

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