Geol 101: Physical Geology
PAST EXAM QUESTIONS
LECTURE 33: SHORELINES II
33. Longshore drift can build a ridge of sand across a river mouth, and is called a (1) _________. Similar ridges of
sand can build up offshore forming a line of (2) ________ that have a lagoon between them and the mainland.
A. (1) barrier island
(2) baymouth bars
B. (1) baymouth bar
(2) spits
C. (1) tombolo
(2) barrier islands
D. (1) pocket beach
(2) baymouth bars
E. (1) spit
(2) barrier islands
33. What type of depositional feature along a shoreline is a mound of sand that links a small offshore island to the
mainland?
A. barrier island
B. spit
C. baymouth bar
D. tombolo
E. pocket beach
33. Which of the following features is NOT ultimately caused by the process of longshore drift?
A. spits
B. barrier islands
C. the shape of the beach between groins
D. baymouth bar
E. marine terraces
33. Which of the following features does not necessarily result from longshore drift?
A. barrier islands
B. spits
C. beaches
D. baymouth bars
E. all of the above form because of longshore drift
33. A coastal resort community has a number of groins built along a north-south oriented shoreline. If the beach sand is
being eroded from the south side of the groins and then deposited along the north side of the groins, then:
A. the longshore drift direction is from north to south
B. the longshore drift direction is from south to north
C. the longshore drift direction is from east to west
D. the longshore drift direction is from west to east
E. there is no longshore drift in this location
33. The three types of erosive processes along shorelines are:
A. abrasion, corrosion, and hydraulic action
B. abrasion, saltation, and hydrologic action
C. erosion, deposition, and abrasion
D. sea cliffs, wave-cut platforms, and headlands
E. longshore currents, waves, and tides
33. Erosion along a shoreline can form a flat platform of rock that gets exposed at low tide and is called a
(1) __________. If this platform is lifted above sea level by tectonic forces, it is called a (2) __________.
A. (1) wave-built platform
(2) marine terrace
B. (1) marine terrace
(2) wave-built platform
C. (1) wave-cut platform
(2) wave-built platform
D. (1) wave-built platform
(2) wave-cut platform
E. (1) wave-cut platform
(2) marine terrace
33. A relative drop in sea level can cause flat areas of once submerged land to be exposed along coastal areas.
These flat areas can be several meters above sea level and are called:
A.
B.
C.
D.
E.
marine terraces
wave-cut platforms
wave-built platforms
sea cliffs
submerged coastlines
33. Which of the following sequences shows the correct order of development of these features on a headland?
A. sea arch, sea stack, sea cave
B. sea cave, sea arch, sea stack
C. sea arch, sea cave, sea stack
D. sea stack, sea arch, sea cave
E. sea cave, sea stack, see another cave
33. Which of the following features would not be expected to occur along a headland?
A. sea arch
B. pocket beach
C. wave-cut platform
D. sea cliff
E. sea cave
33. Which of the following processes would create an emergent coastline?
A. isostatic rebound
B. rising sea level
C. tectonic subsidence of the land
D. all of the above
E. none of the above
33. Which of the following processes would create an emergent coastline?
A. isostatic rebound
B. drop in sea level
C. rise in sea level
D. both A and B above
E. both A and C above
33. Sea level drop during an ice age results in a/an (1) ___________ coastline. Tectonic uplift of the land results in
a/an (2) ___________ coastline.
A. (1) emergent
(2) submergent
B. (1) submergent
(2) emergent
C. (1) submergent
(2) submergent
D. (1) emergent
(2) emergent
E. none of the above