Science of earth-related natural disasters
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Principle of Catastrophism | All of Earth's major features have been produced by a few great catastrophic events; popular in the 17th and 18th centuries
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Principle of Uniformitarianism | Same physical processes active in today's environment have bee operational throughout geologic time.
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Tectonic Cycle | creation, movement and destruction of tectonic plates
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Rock Cycle | largest, linked to all others; creates three different types of rock (igneous, sedimentary, metamorphic)
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Hydrologic Cycle | driven by solar energy; works by way of evaporation, precipitation, surface runoff and subsurface flow
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Biogeochemical Cycle | transfer of cycling of a chemical element(s) through the atmosphere, lithosphere, hydrosphere and biosphere
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Convergent Plate Boundaries | Greatest Earthquakes; Subduction Zones
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Subduction Zone | Denser oceanic crust will go under lighter continental; Oceanic = 2.9 g/cm^3, Continental = 2.8 g/cm^3
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Risk | product of probability of the event occurring times the consequences should it occur
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Risk Analysis | situation dependent
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Prediction | advance determination of the date, time and size of the event
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Forecast | announcement that states that a particular event is likely to occur during a specific time interval
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Flooding | provides nutrients to floodplain; fertile soils
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Landslides | debris forms dams, creates lakes
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Volcanic Ash | nutrient-rich soil
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Natural Hazard | natural source of danger to life, property and the environment
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Natural Disaster | natural event or process that destroys life and/or property; sudden event that causes great damage or loss
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Catastrophe | massive disaster with lots of damage and recovery is long and complex
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