Ocean 115 - Introduction to Oceanography » Spring 2022 » Deepest place video

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Question #1
What is the deepest place on Earth and how deep is it?
A.   Laurentian Deep,over 41,000 feet
B.   Challenger Deep, over 35,000 feet
C.   Peruvian Trench, over 39,000 feet
D.   Valerus Maneris, over 41,000 feet
E.   Challenger Deep, over 31,000 feet
Question #2
What was the first mission to map the ocean floor?
A.   H.M.S. Cook
B.   H.M.S. Challenger
C.   H.M.S. Beagle
D.   U.S.S. Constitution
Question #3
How does sonar work?
A.   pumps sound waves into the water and the sound waves bounce off from solid ground and come back to the sonar, detecting the ocean floor features.
B.   uses light beams to bounce off the ocean floor measuring features
C.   pumps water to bounce off from solid ground and come back to the sonar, detecting the ocean floor features.
Question #4
What is the Trieste? How thick were the walls?
A.   a pioneering submarine that could withstand pressure of 16,000 PSI with its 5 inch walls.
B.   a pioneering submarine that could withstand pressure of 10,000 PSI with its 5 inch walls.
C.   a pioneering submarine that could withstand pressure of 16,000 PSI with its 3 inch walls.
D.   a pioneering submarine that could withstand pressure of 10,000 PSI with its 3 inch walls.
Question #5
What did they see before they landed? What does this prove?
A.   a cuttlefish, proved there was life was native to the trench
B.   a cuttlefish, proved there was life could migrate down the trench
C.   a flatfish, proved there was life was native to the trench
D.   a flatfish, proved there was life could migrate down the trench
E.   they found nothing
Question #6
What happens when the magnetic pole switches?
A.   the north pole moves to the west
B.   the north pole switches positions with the south pole
C.   the north pole moves to the east
D.   the east pole switches positions with the west pole
Question #7
Do the magnetic stripes on the ocean floor reveal the switching of the poles?
A.   Yes
B.   No
Question #8
What problems relate back to subduction?
A.   Landslides and Tsunamis
B.   Earthquakes and Tsunamis
C.   Landslides
D.   Hurricanes
Question #9
Does the type of rock play a role in the frequency and energy of earthquakes?
A.   Yes
B.   No
Question #10
If yes, what is the advantage of having a weak rock like serpentine present?
A.   Having a weak rock makes tsunamis less frequent
B.   Having a weak rock makes large powerful earthquakes less frequent
C.   Having a weak rock makes tsunamis more frequent
D.   Having a weak rock makes large powerful earthquakes more frequent
Question #11
What is the relationship between the age of the subducted rock and the depth of the trench?
A.   a strong relationship between the age of the sea floor and a shallowing of the water
B.   a strong relationship between the age of the sea floor and depth in water
C.   a weak relationship between the age of the sea floor and depth in water
D.   a weak relationship between the age of the sea floor and a shallowing of the water
Question #12
What causes the plates to move?
A.   seafloor spreading
B.   a cold, heavy plate causing subducting into the mantle
C.   divergence
D.   sliding of plates along a vertical fault

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