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Oceanography Units 1-3 review Flashcards | StudBud
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Oceanography Units 1-3 review
Oceanography Units 1-3 review
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1
Which of the following is characteristic of oceanic-continental convergent plate boundaries?
Volcanic island arcs
Mid-ocean ridges
Hot spots
Volcanoes
2
All continents fit together with the least number of overlaps and gaps when the continents are matched along
edges of the deep sea floor
the edge of the continental shelf at around 2,000 meters dept
oceanic trenches in subduction zones
the edge of the water
3
Volcanic features on the ocean floor that are less than 1,000 meters (0.6 miles) tall are called ________.
abyssal hills
seamounts
tablemounts
oceanic trenches
4
The four principal ocean basins (plus an additional ocean) on Earth are the ________.
Atlantic, Arctic, Mediterranean, Southern, and Pacific Oceans
Atlantic, Antarctic, Mediterranean, Southern, and Pacific Oceans
Atlantic, Arctic, Indian, Southern, and Pacific Ocean
Antarctic, Caspian, Indian, Southern, and Pacific Ocean
5
The largest of the ocean basins, which currently covers more than half of the ocean surface, is the ________.
Indian Ocean
Pacific Ocean
Arctic Ocean
Atlantic Ocean
6
Coral reefs ________.
can be found at latitudes above 60°
were first described by Christopher Columbus during his Hispaniola voyage
are most common in deep and cold sub-tropical basins
include atolls, barrier, and fringing reefs
7
All true oceanic islands are ________ in origin.
metamorphic
sedimentary
volcanic
collisional
8
The prehistoric super continent was called ________________, and the ocean surrounding it was called __________________.
Atlas, Mesotheopia
Transtinentia, Monothelassa
Monothelassa, Atlas
Pangaea, Panthalassa
9
The method that is used most frequently to investigate sediment and rock layers of the sea floor is ________.
direct observation
sound waves (specifically seismic reflecting profiling
satellite observation
light waves
10
The gently sloping and fast-spreading parts of the mid-ocean ridge are called ________.
oceanic rises
volcanic arcs
nemataths
oceanic ridges
11
Volcanoes on the seafloor that are flat-topped because of wave erosion are called ________.
tablemounts
mantle plumes
hotspots
seamounts
12
Deep ocean trenches are associated with ________.
turbidity currents
edges of the deep sea floor
subduction zones at convergent plate boundaries
rift valleys
13
Large volcanoes on the seafloor that are cone-shaped on top because they never reached sea level are called ________.
tablemounts
hotspots
seamounts
mantle plumes
14
Underwater avalanches of muddy water mixed with rocks and debris are ________.
turbidity currents
white smokers
graded bedding
coral deposits
15
The correct order of seafloor features from the coast to the mid-ocean ridge is ____.
slope, rise, shelf, abyssal plain
rise, abyssal plain, slope, shelf
shelf, slope, rise, abyssal plain
abyssal plain, rise, slope, shelf
16
The steeply-sloping and slower-spreading parts of the mid-ocean ridge are called ________.
oceanic rises
oceanic ridges
nemataths
ultra-slow spreading centers
17
Current scientific knowledge indicates that the most likely origin of most of Earth's oceans was due to ________.
comets from outer space
water vapor released from volcanic out gassing
water-bearing minerals found in meteoritesD
release of liquid water from the coreA
18
Which of the following is the predominant process that forms the thick blanket of sediment on the deep-ocean floor?
Melting icebergs
Black smokers
Undersea streams
Suspension settling
19
Tectonic plates are pieces of the ________ that float on the more fluid ________ below.
lithosphere; mesosphere
crust; lithosphere
lithosphere; asthenosphere
mantle; crust
20
Characteristics of passive continental margins include which of the following?
Broad continental shelves
Deep-sea trenches
Volcanic and earthquake activity
Chains of islands
21
Active continental margins are characterized by which of the following?
Sparse earthquake activity
Deep-sea trenches
Shallow coastal waters
Broad continental shelves
22
Which of the following is characteristic of oceanic-oceanic convergent plate boundaries?
Fracture zones
Hot spots
Volcanic island arcs
Mid-ocean ridges
23
Which of the following statements regarding continental and oceanic crust is TRUE?
Continental crust is thicker and denser than oceanic crust.
Continental crust is thinner and more dense than oceanic crust.
Continental crust and oceanic crust have equivalent densities.
Continental crust is thicker and less dense than oceanic crust.
24
Which ocean is the deepest ocean in the world?
The Indian Ocean
The Southern Ocean
The Atlantic Ocean
The Pacific Ocean
25
The Hawaiian Islands are located where the Pacific plate is ________.
being subducted beneath Japan
being thrust over the North American plate
being thrust under Japan
moving over a hot spot or mantle plume