GEG 111 EXAM 4 HARPER COLLEGE LATEST ACTUAL EXAM
Within the deep cold zone, average temperature and salinity - ANSWER: remain
fairly constant with depth.
When the height of a wave exceeds its vertical stability, the wave is called a -
ANSWER: breaker.
Which of the following is CORRECT regarding mean sea level? - ANSWER: It is
calculated based on average tidal levels recorded hourly at a given site over a period
of many years.
The height of a tsunami grows as it approaches a coastline primarily because -
ANSWER: its wavelength shortens.
When the Sun and Moon are neither in conjunction or opposition, the ________ tide
occurs and results in the ________ tidal range between low and high tides. -
ANSWER: neap; lowest
When the Sun and Moon are on the same side Earth or on opposite sides of earth,
the ________ tide occurs and results in the ________ tidal range between low and
high tides. - ANSWER: spring; greatest
Particles of sand, gravels, and shells that move along the shore form - ANSWER:
beach drift.
A wave-cut platform is the erosional remnant of a - ANSWER: cliff.
A major difference between a barrier island and a barrier spit is - ANSWER: a barrier
spit is connected to the mainland, whereas a barrier island is not.
A shallow saltwater body cut off from the ocean by a bay barrier is known as a -
ANSWER: lagoon.
The destruction of a mangrove swamp might lead to - ANSWER: loss of species and
coastal erosion
These features block material from blocking harbor entrances. - ANSWER: Jetties
These features create zones of still water near coastlines. - ANSWER: Breakwaters
A coral is a type of ________ that secretes ________ to form a hard external
skeleton. - ANSWER: polyp; calcium carbonate
An atoll is approximately ________ in shape because it forms ________. - ANSWER:
circular; around submerged volcanic islands
, When coral expel their own nutrient-supplying algae, a phenomena called ________
often follows. - ANSWER: bleaching
The term eolian refers to - ANSWER: erosion, transportation, and deposition by
wind.
Desert pavement refers to - ANSWER: surfaces of concentrated pebbles and gravels.
A depression created by deflation is known as a - ANSWER: blowout
An extensive area of sand and sand dunes is known as a(n) - ANSWER: erg desert, or
sand sea.
Glacial ice is - ANSWER: formed from continual accumulation of snow that
recrystallizes under its own weight into an ice mass over a period of many years.
The zone where accumulation balances ablation is known as the - ANSWER:
equilibrium line.
The type of glacier that dominates Greenland and Antarctica is an - ANSWER: ice
sheet.
A general term for a mass of perennial ice, resting on land or floating in the sea
attached to a landmass is - ANSWER: a glacier.
A long, narrow glacially-eroded inlets in which the sea extends inland are known as -
ANSWER: fjords.
An extensive, continuous mass of ice occurring on a continental scale is known as
a(n) - ANSWER: ice sheet.
Vatnajökull is the largest and most voluminous Icelandic glacier. It is roughly circular
in shape, overlays several volcanoes, and covers an area of approximately 8,100 km
2 (3,100 mi 2) with an average thickness of 400 m (1,300 ft). This glacier is an
example of a(n) - ANSWER: ice cap.
The Patagonia region of Chile and Argentina features a large, elongated glacier
approximately 90 km (56 mi) wide and 360 km (224 mi) long. This is an example of
a(n) - ANSWER: ice field
An asymmetrical hill of exposed bedrock produced by plucking and abrasion is
known as a(n) - ANSWER: roche moutonnée.
A glacier confined in a bowl-shaped recess is known as a(n) - ANSWER: cirque glacier.
The general term for all glacial deposits is - ANSWER: glacial drift.
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