Earth Science Exam #2 The Ocean

55 Questions  I  By Hcarmikel
Test on Ocean Sediments, Ocean Floor, El Nino and La Nina

  
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1.  ________ turbidite deposits
A.
B.
C.
2.  Submerged, flat-topped seamounts are known as guyots.
A.
B.
3.  The oceans cover approximately ________ percent of Earth's surface.  
A.
B.
C.
D.
4.  Which ocean has the greatest average depth?
A.
B.
C.
D.
5.  Manganese nodules do not accumulate below 4500 meters depth because the manganese minerals are highly soluble in seawater below that depth.
A.
B.
6.  Submarine canyons form the deepest parts of the ocean basins.
A.
B.
7.  ________ calcareous ooze
A.
B.
C.
8.  Which of the following is associated with ocean ridges?
A.
B.
C.
D.
9.  The element found in some sediments which suggest that a meteorite or asteroid impact occurred nearby is:
A.
B.
C.
D.
10.  Which of the following contains silica (SiO2)?
A.
B.
C.
D.
E.
11.  Which of the following contains calcium carbonate (CaCO3)?
A.
B.
C.
D.
E.
12.  Compared to the Southern Hemisphere, a higher percentage of the Northern Hemisphere is water covered.
A.
B.
13.  The ________ Ocean is largest
A.
B.
C.
D.
14.  Concerning the distribution of land and water, which of the following statements is true?
A.
B.
C.
D.
15.  An echo sounder operates by measuring the time required for a ________.
A.
B.
C.
D.
16.  The ________ marks the transition between the warm surface layer and the deep zone of cold water in the oceans.
A.
B.
C.
D.
17.  Sediments which are poorly sorted and made of a variety of minerals could have been deposited by: . .
A.
B.
C.
D.
E.
18.  The major force bringing continental sediments to the open ocean is (are): .
A.
B.
C.
D.
E.
19.  Sand, silt, and clays deposited on the ocean floor are described as terrigenous sediments
A.
B.
20.  ________ abyssal plain clay
A.
B.
C.
21.  "Black smokers" are associated with ________.
A.
B.
C.
D.
22.  Which of the following is NOT true of deep ocean trenches?
A.
B.
C.
D.
23.  Which of the following is not an important control on oceanic sediment accumulation?
A.
B.
C.
D.
E.
24.  ________ manganese nodule
A.
B.
C.
25.  The surface waters in regions where evaporation rates are high, such as the Red Sea, have higher than average salinities
A.
B.
26.  The most likely place to find abundant manganese nodules is on the:
A.
B.
C.
D.
E.
27.  Calcareous oozes are represented by the number(s);
A.
B.
C.
D.
28.  Submarine canyons found on the continental slope and are believed to have been created ________.
A.
B.
C.
D.
29.  The crests of mid-oceanic ridges ________.
A.
B.
C.
D.
30.  The BEST definition of the outer edge of the continental shelf is that point where ________.
A.
B.
C.
D.
31.  The gently sloping submerged surface extending from the shoreline toward the deep ocean is termed the ________.
A.
B.
C.
D.
32.  Minerals that crystallize directly from seawater are examples of ________.
A.
B.
C.
D.
33.  Biogenous sediments are indicated by the number(s):
A.
B.
C.
D.
34.  Which one of the following concerning mid-ocean ridges is false?
A.
B.
C.
D.
35.  Turbidites and siliceous oozes are both biogenous sediments.
A.
B.
36.  How do calcareous oozes form?
A.
B.
C.
D.
37.  ________ diatom ooze
A.
B.
C.
38.  A very important way to increase the settling rate of fine particles in the open ocean is via: .
A.
B.
C.
D.
E.
39.  The continental rise lies at the bottom of the continental slope.
A.
B.
40.  Which one of the following is NOT part of the continental margin?
A.
B.
C.
D.
41.  Calcium carbonate is most likely to dissolve in water with which characteristics?
A.
B.
C.
D.
E.
42.  It is thought that submarine canyons on the continental slope have been generated by ________
A.
B.
C.
D.
43.  The continental rise is located ________.
A.
B.
C.
D.
44.  The sediments that are produced in areas of high primary productivity are indicated by the number(s):
A.
B.
C.
D.
45.  The ________ Ocean has more extensive abyssal plains than the Pacific Ocean because it has fewer trenches to trap sediments moving down the continental slope.
A.
B.
C.
D.
46.  Sediments that are derived primarily from the weathering on continental material are indicated by the number(s):
A.
B.
C.
D.
47.  A pelagic clay contains lots of material that settles to the seafloor through the water column and are:
A.
B.
C.
D.
E.
48.  The Atlantic and Pacific basins have oceanic ridges; the Indian Ocean has no oceanic ridge
A.
B.
49.  ________ quartz sand
A.
B.
C.
50.  High energy environments are most likely to contain which one of the following?
A.
B.
C.
D.
E.
51.  Seamounts ________.
A.
B.
C.
D.
52.  ________ develop where oceanic lithosphere bends downward and sinks into the mantle.
A.
B.
C.
D.
53.  Which one of the following would you NOT associate with turbidity currents?
A.
B.
C.
D.
54.  Seafloor hot springs occur mainly in oceanic, abyssal plains.
A.
B.
55.  Which one of the following salts is most abundant in seawater?
A.
B.
C.
D.
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