Geology 2
Subtropical deserts centered around this latitude, north and south of the equator.
30
A fiord is __________.
A glacier- cut valley which sinks below sea level after the ice melts
Albedo is .......
A measure of a surfaced reflectivity
A delta is .......
A roughly triangle-shaped alluvial deposit that fans outward like from the mouth of a stream.
Which one of the following applies to a valley glacier that lengthens (extended its terminus downslope) over a period of many years?
Accumulation exceeds wastage.
______ refers to sediments deposited from streaks
Alluvium
_______ is an abandoned, cutoff, meander loop
An Oxbow lake
Which of the following BEST gives the definition of an ephemeral stream?
An intermittent stream that only has water after episodes of rain
The maximum angle at which I unconsolidated material is stable is called the .......
Angle of repose
Highly impermeable layers such as compacted clay or shake are known as _______.
Aquatards
What term describes a groundwater system in which water in a well rises above the top of the aquifer without the use of a pump
Artesian
Sinuous, knife-edged ridges called________ are sculpted by valley glaciers
Arête
_________ describes the total sediment load transported by a stream
Capacity
Which of the following is a measure of a stream's ability to transport particles based on size, rather than quantity?
Competence
What term describes open fissures in the brittle l, surface ice of a glacier
Crevasse
A drainage pattern that resembles the branching pattern of a deciduous tree is called
Dendritic
The volume of water flowing past a certain point in a given unit of time is called ______.
Discharge
________ generally constitutes the highest percentage of the annual sediment load moved by a stream
Dissolved load
One stream's drainage is separated from another's by a __________.
Divide
The area of land that contributes water to a stream is called
Drainage basin
A(n) ________ is a depositional feature composed of till and only associated with continental glaciation, not with Alpine glaciers.
Drumlin
Which of the following materials has the maximum, sustainable, slope angle, as determined by the angle of repose?
Dry sand
A stream that flows only during and right after it rains
Ephemeral
A _______ stream can flow long distances across a desert without being fed by a tributary
Exotic
The flat immediately adjacent to a steam channel that is submerged whenever the stream overflows its banks
Floodplain
All of the following are factors affecting mass movement EXCEPT for ________.
Geologic Age
An intermittent surface emission of hot water and stream is called a __________.
Geyser
Mass wasting depends on the balance between what two forces?
Gravity and friction
Where are the only present-day continental ice sheets?
Greenland, Antarctica
A pyramid-shaped features that form when 3 or more cirque glaciers erode a mountain
Horn
The _______ describes the movement of water through Earth's hydrosphere
Hydrologic cycle
Most rapid and spectacular mass movement events occur______.
In rugged, geologically young mountains
This type of stream only carries water during a wet season.
Intermittent
A wind-blown silt that originates as glacial outwash
Loess
The downslope movement of rock, regolith, and soil is called ________.
Mass wasting
Where is erosion concentrated along a meandering stream?
On the outer parts of the meander loops or bends
Most stream flow year round and are called
Perennial
________ controls the ease (or difficulty) of groundwater transmission through a porous material.
Permeability
_____ is the volume of voids or open space in a rock or unconsolidated material
Porosity
A drainage pattern comprised of streams that divergent from a central are like spikes is called ________.
Radial
Which of the following is the fastest type of mass movement?
Rock fall
The most common type of weathering in arid environment is......
Salt wedging
The ice covering the Arctic Ocean is ______.
Sea ice
___________ is a circular surface depression that forms when soluble rocks dissolve
Sinkhole
Tributaries are .......
Smaller streams that contribute water to another stream
A drumlin is a ________.
Smooth, tapering ridge of till; formed and shaped beneath a continental ice sheet
Which mass movement process has the slowest rate of movemment?
Soil creep
Groundwater flows free from the surface at a __________.
Spring
A ______ is the icicle-like cave deposit that grows down from the roof of a cavern
Stalactite
This semi-arid climate zone represents a transitional zone between arid and humid climates
Steppe
Which is the correct term for water that flows in a channel, regardless of size ?
Stream
Which of the following best describes what would happen if the glacial budget is out balance, with ablation exceeding accumulation?
The glacier will retreat
A valley glacier erodes a preexisting stream valley giving it a characteristic......
U-shape
Evaporation=
Water heated by the suns rays leaves from the earths surface and rises into the atmosphere as vapor
Part of a glacier where is snows more than it melts.
Zone of Accumulation
