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Environmental Geo
Test 1
| Question | Answer |
|---|---|
| resistance to flow | viscosity |
| depression at the top of a volcano | crater |
| mostly explosive volcano with highly viscous magma and forms rhyolite rock | volcanic domes |
| opening through which lava and tephra erupt to the surface | vent |
| an opening in the earth's surface through which gases, ash and/or molten rock escape | volcano |
| circulation and heating patterns that produce periodic release of steam and hot water | geyser |
| blobs of ejected lava that flow through the air | bombs |
| magma that has emerged from a volcano to the Earth's surface | lava |
| largest volcano, shaped like a gentle arch | shield |
| small volcanoes, formed from tephra | cinder cones |
| large volumes of loose ash becomes saturated with water and is unstable, moves downslope | lahar |
| 2/3 of all volcanoes are found here | Ring of Fire |
| all debris that ejects from a volcano | tephra |
| ash fall from this volcano suffocated the residents of Pompei and buried the town | Vesuvius |
| steep flanked volcano responsible for most death and destruction | composite |
| gigantic, circular depressions resulting from explosive ejection of magma and collapse of the cone | caldera |
| type of smog associated with volcanoes | vog |
| how often a hazard occurs | frequency |
| probability of an event occurring and the consequences resulting from that event | risk analysis |
| this is considered the number one environmental problem | population growth |
| example of what can happen with overpopulation and mistreatment of resources | Easter Island |
| the use of geologic information to help solve conflicts in land use, minimize environmental degradation and to maximize the beneficial results of using or natural and modified environments | environmental geology |
| search and rescue actions after a hazard event has occurred | reactive response |
| predicting when and where a hazard event may occur | forecasting |
| the present is the key to the past, and the present is the key to the future | uniformitarianism |
| loss of life and property | natural disaster |
| ensures that future generations will have equal access to the resources our planet offers | sustainability |
| volcanic eruption in Colombia where warning signs were ignored | Nevada del Ruiz |
| amount of energy released | magnitude |
| the science of processes related to the composition, structure, and history of Earth | geology |
| gradual downslope movement of rock and soil | creep |
| rock fragments that fall | talus |
| landslide caused the reservoir to "explode;" worst dam disaster | Vaiont Dam |
| rock and soil moving as a unit over a curved surface | slump |
| landslide in northern California, activated by urban development | Portuguese Bend |
| block of bedrock sliding down dip | rockslide |
| downslope movement of rock and soil under the influence of gravity | mass wasting |
| movement of earth material down slope due to weight | driving force |
| most common landform on earth | slope |
| transition zone near the top of a landslide | scarp |
| opposes movement downslope | resisting force |
| maximum slope at which loose, cohesion-less material is stable | angle of repose |
| high moisture content, material forms "batter" | mudflow |
Created by:
stoniertk28
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