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geography revision
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- 1tectonic hazards...
- 2Conservative plate marginTectonic plate margin where two tectonic plates slide past each other
- 3Constructive plate marginTectonic plate margin where rising magma adds new material to plates that are diverging or moving apart.
- 4Destructive plate marginTectonic plate margin where two plates are converging or coming together and oceanic plate is sub ducted. It can be associated with violent earthquakes and explosive volcanoes.
- 5EarthquakeA sudden or violent movement within the Earth’s crust followed by a series of shocks
- 6Immediate responsesThe reaction of people as the disaster happen sand in the immediate aftermath.
- 7Long-term responsesLater reactions that occur in the weeks, months and years after the event.
- 8MonitoringRecording physical changes, such as earthquake tremors around a volcano, to help forecast when and where a natural hazard might strike
- 9Plate marginThe margin or boundary between two tectonic plates
- 10PlanningActions taken to enable communities to respond to, and recover from, natural disasters, through measures such as emergency evacuation plans, information management, communications and warning systems.
- 11PredictionAttempts to forecast when and where a natural hazard will strike, based on current knowledge.This can be done to some extent for volcanic eruptions (and tropical storms), but less reliablyfor earthquakes
- 12Primary effectsThe initial impact of a natural event on people and property, caused directly by it, for instance the ground buildings collapsing following an earthquake
- 13ProtectionActions taken before a hazard strikes to reduce its impact, such as educating people or improving building design.
- 14Secondary effectsThe after-effects that occur as indirect impacts of a natural event, sometimes on a longer timescale, for instance fires due to ruptured gas mains resulting from the ground shaking.
- 15Tectonic hazardA natural hazard caused by movement of tectonic plates (including volcanoes and earthquakes).
- 16Tectonic plateA rigid segment of the Earth’s crust which can ‘float’ across the heavier, semi-molten rock below. Continental plates are less dense, but thicker than oceanic plates
- 17VolcanoAn opening in the Earth’s crust from which lava, ash and gases erupt
- 18Weather hazards...
- 19Economic impactThe effect of an event on the wealth of an area or community
- 20Environmental impactThe effect of an event on the landscape and ecology of the surrounding area
- 21Extreme weatherThis is when a weather event is significantly different from the average or usual weather pattern, and is especially severe or unseasonal. This may take place over one day or a period of time. A severe snow blizzard or heat wave are two examples of extreme weather in the UK.
- 22Global atmospheric circulationThe worldwide system of winds, which transports heat from tropical to polar latitudes. In each hemisphere, air also circulates through the entire depth of the troposphere which extends up to 15 km.
- 23Immediate responsesThe reaction of people as the disaster happens and in the immediate aftermath.
- 24Long-term responsesLater reactions that occur in the weeks, months and years after the event.
- 25Management strategiesTechniques of controlling, responding to, or dealing with an event.
- 26MonitoringRecording physical changes, such as tracking a tropical storm by satellite, to help forecast when and where a natural hazard might strike.
- 27PlanningActions taken to enable communities to respond to, and recover from, natural disasters, through measures such as emergency evacuation plans, information management, communications and warning systems.
- 28PredictionAttempts to forecast when and where a natural hazard will strike, based on current knowledge.This can be done to some extent for tropical storms (and volcanic eruptions, but less reliably for earthquakes).
- 29Primary effectsThe initial impact of unnatural event on people and property, caused directly by it, for instance buildings being partially or wholly destroyed by a tropical storm.
- 30ProtectionActions taken before a hazard strikes to reduce its impact, such as educating people or improving building design.
- 31Secondary effectsThe after-effects that occur as indirect impacts of a natural event, sometimes on a longer timescale, for instance impact on access to potable water can lead to spread of disease.
- 32Social impactThe effect of an event on the lives of people or community
- 33Tropical storm (hurricane, cyclone, typhoon)An area of low pressure with winds moving in a spiral around the calm central point called the eye of the storm. Winds are powerful and rainfall is heavy.
- 34Climate change...
- 35AdaptationActions taken to adjust to natural events such as climate change, to reduce potential damage, limit the impacts, take advantage of opportunities, or cope with the consequences
- 36Climate changeA long-term change in the earth's climate, especially a change due to an increase in the average atmospheric temperature.
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- Fichas sobre geography revision , creado por Alexander Booth el 26/07/2021.
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- Alexander Booth
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