Term
| The _________ of a river is the volume of flow that passes a specific location in a given period of time. |
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Definition
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Term
| The ________ of a river is the height of the water (in feet) above a local base height. |
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Definition
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Term
| Flood frequency is the average time interval between __________. |
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Definition
| Te occurrence of two similar floods with the same water level |
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Term
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Definition
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Term
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Definition
T = Time
N = Years Recorded
M = Rank |
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Term
| ___________ of earth materials can take place at highly variable rates. |
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Definition
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Term
| Landslides are more common on __________ slopes. |
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Definition
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Term
| __________ deposits ill move downslope more easily than bedrock. |
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Definition
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Term
| Landslides are generally more frequent in areas of seasonally ________ rainfall. |
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Definition
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Term
| The most common types of slope movement are ___________________. |
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Definition
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Term
| 1st major type of volcano that is typically present in the united states |
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Definition
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Term
| 2nd major type of volcano that typically presents hazards in he united states |
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Definition
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Term
| What is another name for composite volcanoes? |
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Definition
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Term
| ________ volcanoes are relatively flat. |
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Definition
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Term
| ________ volcanoes are often conical. |
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Definition
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Term
| Most magmas are composed primarily of ___________. |
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Definition
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Term
| ________ are the most devastating type of volcanic eruption |
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Definition
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Term
| ________ is a measure of how easily a substance flows. |
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Definition
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Term
| A _____ viscosity substance will be very fluid, like water. |
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Definition
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Term
| A ______ viscosity substance will be very thick, like molasses or honey. |
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Definition
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Term
| _______ volcanoes can be hazardous. |
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Definition
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Term
| ______ can be triggered on steep slopes by earthquakes or rocks that have been weakened by chemical actions. |
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Definition
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Term
| _______ form from eruption onto snow and ice or into rivers. |
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Definition
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Term
| ______ are an explosive ejection of rock fragments from the side of the volcano. |
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Definition
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Term
| The most recent eruption of Mt St Helens occurred on ______. |
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Definition
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Term
| Mt St Helens has been active over the past _______ years. |
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Definition
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Term
| A ______ occurs when bodies of water flow over land that is not usually submerged. |
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Definition
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Term
| _______ occur when the water height passes an arbitrary level |
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Definition
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Term
| Floods are ________ of rivers. |
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Definition
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Term
| The ______ of a stream the volume of flow that passes a specific location in a given period of time. |
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Definition
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Term
| Where flood records are available, computations of _____ are based on peak annual floods. |
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Definition
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Term
| About ___ percent of the US population lives within 50 miles of a coast. |
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Definition
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Term
| ____ of the 50 states in the US are considered coastal states. |
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Definition
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Term
| _____ are highly energetic zones. |
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Definition
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Term
| Natural and human activities impact both _________. |
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Definition
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Term
| Waves and currents, storms, landslides are examples of the agent of ________. |
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Definition
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Term
| Climate change, stream course changes, and source depletion are examples of the agent of ________. |
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Definition
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Term
| land subsidence and sea-level rise are examples of the agent of ________. |
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Definition
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Term
| herbivory, freezes, fires, and saltwater intrusion are examples of the agent of ________. |
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Definition
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Term
| Erosion, Sediment reduction, submergence, and wetland deterioration are examples of __________. |
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Definition
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Term
| Boat wakes,sediment deprivation, and coastal structures are examples of the agent of ________. |
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Definition
| Transportation Coastal Construction |
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Term
| Control and diversion (dams, levees) are examples of the agent of ________. |
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Definition
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Term
| Water, oil, gas, and sulfur are examples of the agent of ________. |
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Definition
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Term
| Global warming, ocean expansion, and increased frequency of storms are examples of the agent of ________. |
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Definition
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Term
| Dredging (canals) and mineral extraction are examples of the agent of ________. |
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Definition
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Term
| Pollutant discharge, traffic, and burning are examples of the agent of ________. |
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Definition
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Term
| Transportation Coastal Construction, River Modification, Fluid extraction, Climate alteration, Excavation, and Wetland Destruction are examples of ________. |
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Definition
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Term
| The most common types of slope movement are _________. |
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Definition
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Term
| The term ______ remains a widely used nontechnical term for the most perceptible forms of downslope movement even though some by definition involve little or no sliding. |
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Definition
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Term
| ________ of earth materials is taking place continuously at rates that vary from the very slow creep of soil and rock to the extremely rapid rockfalls and avalanches. |
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Definition
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Term
| Landslides occur when the pull of gravity on earth materials overcomes their ________ to downslope movement |
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Definition
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Term
| _______ will move downslope more easily than bedrock |
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Definition
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Term
| Landslides are more common on _______ slopes. |
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Definition
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Term
| Landslides are generally more frequent in areas of ___________. |
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Definition
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Term
| _______ makes the resulting slopes particularly susceptible to landsliding. |
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Definition
| Rapid undercutting and downcutting along streams and shorelines |
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Term
| __________ can make areas less susceptible to landslides. |
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Definition
| Vegetation with deep roots |
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Term
| ________ is the sinking of the land surface. |
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Definition
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Term
| Subsidence is a hazard commonly associated with __________. |
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Definition
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Term
| A well known example of subsidence is ________. |
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Definition
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Term
| With _______ need for the resources extracted from eh subsurface and ________ human use of the surface, the problem of land subsidence can be expected to ________. |
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Definition
| increased, increased, increase |
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Term
| Downslope movement of earth materials can take place at ___________ rates |
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Definition
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Term
| landslides are more common on _________________ slopes |
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Definition
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Term
| __________________deposits will move downslope more easily than bedrock |
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Definition
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Term
| Landslides are generally more frequent in areas of seasonally______________ rainfall. |
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Definition
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Term
| The _____ types of slope movement are falls,slides, and flows |
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Definition
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