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Earth Science Exam #2 The Ocean

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

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