Ocean 115 - Introduction to Oceanography » Spring 2023 » Week 4 Bathymetry Post-reading Quiz

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Question #1
What marks the true division between continents and oceans?
A.   Abyssal plains
B.   Coastlines
C.   Coastal deep-sea trenches
D.   Granite-basalt transitions
Question #2
What characteristic of continental crust accounts for more than half of Earth's solid surface being below sea level?
A.   Continental crust is thinner than oceanic crust.
B.   Continental crust is both less dense and thinner than oceanic crust.
C.   Continental crust is less dense than oceanic crust.
D.   Continental crust is denser than oceanic crust.
Question #3
Passive margins are also referred to as ____.
A.   Atlantic-type margins
B.   Pacific-type margins
C.   Converging-type margins
D.   Basin-type margins
Question #4
Most geologists believe that submarine canyons have been formed by ____
A.   Subduction
B.   Turbidity currents
C.   Volcanoes
D.   Sea level changes
Question #5
What process gives trenches their unique arc-shaped depressions?
A.   Turbidity
B.   Erosion
C.   Spreading
D.   Subduction
Question #6
Which of the following features is typically associated with divergent plate motion?
A.   Oceanic ridge
B.   Continental shelf
C.   Abyssal plain
D.   Deep-sea trench
Question #7
Which of the following contribute to guyot formation?
A.   submarine volcanism, erosion, movement along fracture zone
B.   movement along fracture zone, erosion, thermal contraction
C.   submarine volcanism, movement along fracture zone, thermal contraction
D.   submarine volcanism, erosion, thermal contraction
Question #8
Which of the following are true of submarine canyons?
A.   They cut through sediments of the continental shelf, slope and rise. They begin at mid-ocean ridges and stretch out onto the abyssal plain. They are carved by turbidity currents.
B.   They begin at mid-ocean ridges and stretch out onto the abyssal plain. They are carved by turbidity currents. They spill out onto the deep seafloor as abyssal fans.
C.   They cut through sediments of the continental shelf, slope and rise. They are carved by turbidity currents. They spill out onto the deep seafloor as abyssal fans.
D.   They cut through sediments of the continental shelf, slope and rise. They begin at mid-ocean ridges and stretch out onto the abyssal plain They spill out onto the deep seafloor as abyssal fans.
Question #9
Which features are found in association with subduction zones?
A.   hot spot volcanoes, arc volcanoes, shallow, intermediate and sometimes deep earthquakes
B.   trenches, arc volcanoes, shallow, intermediate and sometimes deep earthquakes
C.   trenches, arc volcanoes, hot spot volcanoes
D.   trenches, hot spot volcanoes, shallow, intermediate and sometimes deep earthquakes
Question #10
Which of the following is most sensitive to changes in sea level?
A.   Continental shelf
B.   Hydrothermal vents
C.   Continental rise
D.   Continental slope

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