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