Physical Science 2 Final P6

Unit 11 Chapt Er 23 P4

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Side ASide B
Which of the followiing landscapes were not carved by glaciers?
the Grand Canyon
A glacier forms when
snow accumulates to form ice and the ice mass begins to flow under its own weight.
The water table is found at the
top of the zone of saturation
Caves and caverns are formed in carbonate rock by
reaction of carbonic acid released into the groundwater
The flow of a glacier begins
after it has reached a critical mass.
Water able to be contained in the subsurface depends on
The flow of ground is dependent on
hydraulic conductivity and pressure
Which has the longest residence time
polar ice caps and glaciers
The most important agent of erosion is
The depositionaal landform at the farthest advance of a glacier is called a
terminal moraine
As a large reservoir behind a new dam fills with water, what happens to the water table in the vicinity of the reservoir
the water table rises
V-shaped valleys are
common in mountainous regions
Through which of the following is the infiltration of water greatest?
sandy soil
When a perched water table intersects the surface on a hillside, the result is
a spring
In a delta environment the first grains to settle are
coarse-grained sediment
The discharge of a stream is directly related to the
cross-sectional area of a channel and the average stream velocity
Evaporation and precipitation are greatest over the
Movement of water erodes stream channels. The main source of erosion comes from
physical abrasion of water and rock particles
As water flows around a river meander, erosion occurs
on the outside of the meander
In a delta environment we find that fine-grained sediments settle
far away from the mouth of the stream channel
Water precipitation over land completes its cycle as it
all of these
Of the three agents of erosion-water, wind, and ice- the one with the ability to move only the smallest particles is
Evaportation and pprecipitatioin are in balance over the
Glaciers lose mass by
melting and calving
In a meandering stream, dposition of sediment occurs on
the inner side of a meander
Glacial debris is generally
a mishmash of shapes and sizes
Stalactites from
from water rich in calciium dripping from a cave ceiling and from a cave ceiling downward
Which of the following is a necessary condition for an ice mass to be a glacier
the ice mass must move under its own weight
The principal cause of erosion and transportation of sediment in a desert environment is
The most powerful agent of erosion is
glacial action
Common galcial landforms created of drift include moraines
and drumlins
What determines the maximum sediment load of a stream
stream discharge
The necessary condition to produce an artesian system is
a confined aquifer under sufficient pressure
Deltas form
as streams enter a standing body of water
In a well in an unconfined aquifer,what is the highest level water can rise to if there is no pump?
to the level of the water table
Stream velocity is dependant on
gradient, channel geometry,and discharge
Point bars typically form
on the inside of a curved stream channel
The flow of groundwater depends on
hydraulic gradient and hydraulic conductivity
Stream velocity is faster in a
stream with a very steep gradient
On a floodplain, stream flow is generally
Glaciers will retreat when the amount of accumulation
is less than the amount of ablation each year
The formations of rock hanging from the roofs of caves are called
As sediment travels in a downstream river, it changes by getting
Where does most rainfall on Earth finally end up before becoming rain again?
in the oceans
The transport of large particle sizes is greatest
when steam speed is very fast
Stalactites form
from water rich in calcium dripping from a cave ceiling and from a cave ceiling downward
Most of the Earth's fresh water is located in
polar ice caps and glaciers
The most common drainage network is the
dentritic drainage pattern
Headward erosion of a group of cirques around a mountain may produce
a horn
Which of the following is not involved in cave formation in limestone?
land subsidence
The capacity a material has for transmitting fluids is known as its
Landforms created by glacial erosion include
hanging valleys, cirques, and roches moutonnees.
A moraine is a
glacier deposit
Land subsidence is generally not reversible because
the compacted clay layers cannot be expanded
Water in the unsaturated zone is called
When subsurface ground material is completely saturated with water, we call it
groundwater and the saturated zone
As water is withdrawn from a well, the water table around the well
drops, creating a cone of depression
Snow converts to glacial ice when subjected to
The greater the hydraulic gradient the
the faster the flow
The typical mountain valley that has been subjected to glaciation is shaped like
The letter "U"
Water is vital to life on our planet. Most of the Earth's water supply is in the
The maximum volume of sediment a stream can carry is dependent on the stream's
Streams transport great quantities of sediment. The most effective transport of sediment occurs in
turbulent flow
The poorest absorber of water is
rocky surfaces with no soil layer
A rock with very low porosity will most often have a
low permeability
The headwater flow of a mountain stream is generally characterized as
On a floodplain, the sediment grains away from the main river channel are
fine-grained silts and clays
As streams move downslope, channel dimension generally
Blocks of ice buried in a glacial moraine often result in the formation of
small glaciel lakes
The region above the zone of saturation is called
the zone of aeration
The driving force of our planet's hydrologic cycle comes from
solar energy
The necessary condition to produce an artesian system is
a confined aquifer under sufficient pressure
Precipitation exceeds evaporation over the
The Mississippi River has a huge water and sediment capacity. As such, the river also has a huge delta. With each year and each episode of deposition, the
course of the river lengthens and the delta grows
The annual amount of snow lost by a glacier is called
What is the lowest level to which water can erode land?
sea level
As water flows around a river meander, erosion occurs
on the outside of the meander
In a meandering river, erosion is most notable on
on the outer side of the meander
In general, sinkholes are found in areas
dominated by limestone
Over withdrawal of groundwater causes ground subsidence in areas
underlain by unconsolidated sediments
Within a stream channel, the speed of stream flow is greatest
in the middle of the channel at the water's surface

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