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Catastrophic Events

7.8A Catastrophic Events/Natural Disasters

TermDefinition
Catastrophic Events Extreme weather events such as floods, hurricanes, & tornadoes; classified by the extent & intensity of their impact on the ecosystem.
Ecosystem System consisting of all the interactions that occur between the abiotic & biotic factors within an environment.
Flood Rising body of water that submerges normally dry land.
Hurricane Large, tropical weather system in the northeastern Pacific or northern Atlantic Oceans consisting of an extreme low-pressure air mass with heavy rains & wind speeds of at least 119 km/h (74 mph).
Tornado Violently rotating column of air extending from a thunderstorm to the ground with wind speeds from 40 to 318 mph.
Haboob Large-scale dust storm.
Wildfire Large fire that spreads quickly over a natural area.
Tsunami Giant wave usually caused by an earthquake beneath the ocean floor.
Drought Long period of dry weather.
Earthquake Shaking that results from the movement of rock beneath Earth's surface.
Volcano Vent in the surface of Earth that emits ash, gases, &/or molten lava.
Avalanche Slide of large masses of snow, ice, & mud down a mountain.
Landslide Sudden movement of rock & soil down a slope.
Sinkhole A hole formed when limestone is dissolved, causing the land above to collapse.
Natural Disaster Great destruction or loss of life caused by natural forces rather than by human actions.
Man-Made Disaster Widespread damage or loss of life brought about by the action of humans.
Created by: trauberk
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