854232
Descripción
Test por Ricky Elmendorf, actualizado hace más de 1 año
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Creado por Ricky Elmendorf
hace alrededor de 10 años
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Pregunta 1
Pregunta
Large waves are generated by
Respuesta
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Short fetch
-
Short duration that wind blows in a given
-
Variable wind directions
-
None of these
Pregunta 2
Pregunta
When waves begin to interact with the seafloor this happens
Respuesta
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wavelength decreases
-
wave height increasese
-
wave steepness decreases and the wave breaks
-
Both a and b
Pregunta 3
Pregunta
Water moving up the beach after the wave breaks is termed
Respuesta
-
Surf
-
Backwash
-
breaker
-
swell
Pregunta 4
Pregunta
The effect of the concentration of wave energies on headlands is to
Respuesta
-
make the coastline more irregular
-
make the coastline straighter
-
produce more sand dunes along the coast
-
erode the bays
Pregunta 5
Pregunta
Groins are usually constructed to
Respuesta
-
stabilize beaches by lessening erosion
-
to protect boats along the coast
-
to prevent cliff erosion
-
to produce a calm environment along the coast for organisms of the sea
Pregunta 6
Pregunta
Storm surges result in part from
Respuesta
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strong winds associated with tsunami
-
high atmospheric pressure along the coast associated with storms
-
low atmospheric pressure along the coast associated with storms
-
all of these
Pregunta 7
Pregunta
Lake waves would be largest when
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winds are strong and fetch is short
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winds are strong and fetch is long
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winds are weak and fetch is short
-
winds are weak and fetch is long
Pregunta 8
Pregunta
Mid-latitude beaches that have seasonal patterns of erosion and deposition
Respuesta
-
mostly erode during the summer due to strong waves
-
grow during winter due to sediment deposition associated with stronger waves
-
mostly grow during summer due to sediment deposition associated with weaker waves
-
None of these
Pregunta 9
Pregunta
Dams on rivers supplying sediment to beaches will result
Respuesta
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in the growth of the beach
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in erosion of the beach
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in growth or erosion of the beach depending on the season and the amount of water released by the dams
-
none of these, dams do not impact beaches
Pregunta 10
Pregunta
These two factors are important in the development of dunes next to beaches
Respuesta
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mostly unidirectional winds, sufficient sand supply
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much vegetation, humid climate
-
desert climate, multidirectional winds
-
desert climate, mostly unidirectional winds
Pregunta 11
Pregunta
These are erosional coastal features
Respuesta
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Sea caves
-
tombolos
-
sea cliffs
-
wave-cut platforms
-
a,c, and d
Pregunta 12
Pregunta
Emergent coasts are associated with
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uplift related to tectonic activity
-
rising sea level
-
sinking of the land due to tectonic activity
-
All of the above
Pregunta 13
Pregunta
What caused most coastlines to become submerged over the past 10,000 years?
Respuesta
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subsidence of land
-
sea level rise
-
growth of icesheets
-
tectonic shifts
Pregunta 14
Pregunta
Which of the following is not a result of coastal deposition?
Respuesta
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baymouth bar
-
tombolo
-
sea stack
-
sandspit
Pregunta 15
Pregunta
Regular patterns of smooth, rounded waves are called
Respuesta
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breakers.
-
wave ripples.
-
wave trains
-
swells
Pregunta 16
Pregunta
Waves in shallow water that "feel bottom" are ________ and more ________ spaced
than the swell they are related to.
Respuesta
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taller; closely
-
taller; widely
-
smaller; closely
-
smaller; widely
Pregunta 17
Pregunta
Wave action works to straighten a coast as wave energy focuses around headlands
and tends to disperse energy in coves and bays in a process called
Respuesta
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longshore current
-
breakers
-
wave refraction
-
tidal bore
Pregunta 18
Pregunta
Particles of sand, gravels, and shells that move along the shore form the
Respuesta
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Breakers
-
longshore current
-
beach drift or longshore drift
-
translation effects
Pregunta 19
Pregunta
When people go surfing or swimming along a coast, they often find—after spending
time in the water—that they are no longer in the area in which they first entered the water.
In other words, they find that they have moved downshore, even though they did not
deliberately move in that direction. This occurs because of
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tsunamis
-
beach drift
-
longshore currents
-
tidal currents
Pregunta 20
Pregunta
Which of the following is false regarding tsunamis?
Respuesta
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They can travel at a speed of several hundred miles per hour
-
They have very long wavelengths in the open ocean
-
They are very tall in the open ocean
-
They slow down as they approach shore
Pregunta 21
Pregunta
Which of the following is not an example of an erosional coastal landform?
Respuesta
-
sea arch
-
barrier spit
-
wave-cut platform
-
notched cliff
Pregunta 22
Pregunta
A terrace is
Respuesta
-
an uplifted sea stack
-
an uplifted wave-cut platform
-
an erosional surface created by a massive tsunami
-
an uplifted foreshore dune
Pregunta 23
Pregunta
Which of the following is not an example of a depositional coastal landform?
Respuesta
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Delta
-
barrier spit
-
bay barrier
-
wave cut platform
Pregunta 24
Pregunta
Which of the following conditions is not conducive to the formation of barrier islands?
Respuesta
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tectonically active coasts
-
sediment supply from rivers
-
low tidal range
-
presence of continental shelf
Pregunta 25
Pregunta
Sea level rise associated with global warming should be expected to:
Respuesta
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Increase rates of sediment delivery to deltas
-
Increase rates of coastal erosion
-
Decrease rates of longshore sediment transport
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Increase deposition on coastal dunes
Pregunta 26
Pregunta
Tectonic Forces
Respuesta
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Erode the surface of the Earth
-
Warm, fold, and uplift rock
-
Control soil formation processes
-
Form sedimentary rock
Pregunta 27
Pregunta
Linear lakes forming in East Africa because of what
Respuesta
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Rifting
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Subduction
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Compression
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Isostatic Uplift
Pregunta 28
Pregunta
Which of the following are located along the mid-ocean ridges?
Respuesta
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Volcanoes
-
outcrops of granite
-
old oceanic sediments
-
evaporite deposits
Pregunta 29
Pregunta
The process that describes the depression and rebound of continental crust due to
adding or removing weight is called:
Respuesta
-
continental drift
-
seafloor spreading
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Plate tectonics
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Isostacy
Pregunta 30
Pregunta
A spontaneous downslope movement of Earth materials driven by gravity is called
Respuesta
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Erosion
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Weathering
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Mass movement
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Diagenesis
Pregunta 31
Pregunta
Rates of erosion are generally greater
Respuesta
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flat lowlands
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Steep Mountains
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near the mouth of a river
-
in dry desert valleys
Pregunta 32
Pregunta
Landslides occur when
Respuesta
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When a threshold is reached
-
the internal friction is overcome by the force of gravity.
-
when driving forces exceed resisting forces
-
All of the above
Pregunta 33
Pregunta
Landslides occur when
Respuesta
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When a threshold is reached
-
the internal friction is overcome by the force of gravity.
-
when driving forces exceed resisting forces
-
All of the above
Pregunta 34
Pregunta
Creep involves movement of soil
Respuesta
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at a rapid speed
-
At a slow, almost non-distinguishable pace
-
rapidly at first, then slows down
-
slowly at first, then rapidly speeds up
Pregunta 35
Pregunta
What is the discharge of a river with a depth of 0.5 meters, width of 10 meters and a flow
velocity of 0.5 meters/second
Respuesta
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2.5 m^3/sec
-
0.5 m^2/sec
-
5.0 m^2/sec
-
25 m^3/sec
Pregunta 36
Pregunta
As the discharge of a stream increases, which of the following also happens?
Respuesta
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As the discharge of a stream increases, which of the following also happens?
-
The rate of flow decreases.
-
Channel width increases but channel depth decreases.
-
Width, depth, and velocity all increase.
Pregunta 37
Pregunta
Streams that receive large loads of coarse sediment are likely to have:
Respuesta
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a) Narrower channels than streams that receive little sediment
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b) Steeper channel slopes than streams that receive little sediment
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c) Frequent large waterfalls
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d) Straight rather than meandering channels
Pregunta 38
Pregunta
Floodplains are formed by
Respuesta
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a) Erosion of valley-side bluffs
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b) Deposition on point bars of meandering streams and by overbank flows
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c) Repeated floods that erode broad flat surfaces.
-
d) Chemical weathering at the elevation of the water table
Pregunta 39
Pregunta
Which of the following will lead to the development of stream terraces?
Respuesta
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a) tectonic uplift which steepens channels
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b) decreased sediment yield into the stream
-
c) a drop in base level on tributaries of a larger stream
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d) any of the above
Pregunta 40
Pregunta
The following are all forms of ablation EXCEPT:
Respuesta
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a) melting
-
evaporating
-
calving
-
Precipitation
Pregunta 41
Pregunta
) The material in a glacial moraine is usually
Respuesta
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a) sorted by weight.
-
b) sorted by size.
-
c) sorted by weight and size.
-
d) unsorted.
Pregunta 42
Pregunta
Which of the following is false regarding the Pleistocene ice sheets in North America?
Respuesta
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a) At their maximum, they extended only to the present-day Canadian border.
-
b) Their maximum thickness was about 2 km (1.2 mi).
-
c) They dramatically altered the landscape of much of the U.S.
-
d) The edges of the ice sheets were not even; rather, they were characterized by ice lobes that formed curved edges.
-
e) They disappeared by 7,000 years ago.
Pregunta 43
Pregunta
The average density of the Earth is 5.5 g/cm3
; whereas the average density of
the continental crust is 2.7 g/cm3
and oceanic crust is 3.3 g/cm3
. Which statement best
explains the discrepancy between the densities of the Earth’s crust versus the overall
Respuesta
-
the deeper layers of the Earth are made up of heavier elements such as iron, nickel, and magnesium
-
b) the sun’s effect on the density of the Earth’s crust has not been calculated
-
c) these numbers change with every earthquake occurrence
-
d) adding the moon’s density to the density of the continental and oceanic crusts adds up to Earth’s average density
Pregunta 44
Pregunta
At which of the following locations does subduction occur?
Respuesta
-
a) along collision zones between two continents
-
b) at sea floor spreading zones
-
c) above mantle hot spots
-
d) along collision zones between continental and oceanic plates
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