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SCIN 136 Mid Term Exam.docx
SCIN_136_Mid_Term_Exam.docx
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SCIN 136 Mid Term Exam.docx-Part 1 of 1 - 98.42/
SCIN_136_Mid_Term_Exam.docx-Part 1 of 1 - 98.42/
SCIN 136 Mid Term Exam.docx-Part 1 ...
SCIN_136_Mid_Term_Exam.docx-Part 1 of 1 - 98.42/
Page 14
Feedback: Remember these can only be formed far from land where land-derived sediments don't cover
them up.
Question 37 of 75
1.33/ 1.33 Points
The
reason
that manganese nodules are found in large quantities in the central Pacific and Indian
Oceans is:
A.Pacific water is warmer than any other ocean area.
B.the North Pacific Gyre concentrates the material there.
C.since the material precipitates very slowly out of seawater it's the only area far enough from land
where they do not get covered up by terrigenous sediments.
D.Pacific and Indian Ocean waters have a higher concentration of manganese than water in the
other oceans.
E.because that's where the U.N. said they should be.
Question 38 of 75
1.33/ 1.33 Points
The
Law of the Sea Treaty
was proposed by:
A.U.S. Congress
B.Green Peace
C.the Kremlin (Putin & Co.)
D.the U.N.
E.the Vactican
Question 39 of 75
1.33/ 1.33 Points
The
UNCLOS Treaty
contains provisions that cover which of the following?
A.Seabed mining
B.Treasure salvage
C.Right of passage for ships
D.Fishing boundaries
E.All of the above
Question 40 of 75
1.33/ 1.33 Points
Page 15
The
Hadal Zone
is found at which of the following oceanic features?
A.Abyssal plains
B.Continental Slope
C.Continental Shelf
D.Trenches
Question 41 of 75
1.33/ 1.33 Points
The average salinity of the oceans is about ______ 0/000.
A.35
B.30
C.37
D.28
E.18
F.the same as the stuff Donald Trump sprays on his comb-over hair.
Feedback: It is almost the same as the ion concentration in human blood plasma.
Rumor has it that Trump uses Super-Glue.
Question 42 of 75
1.33/ 1.33 Points
Deep water is often rich in:
A.dissolved gas
B.plant life
C.nutrients
D.all of the above
E.a and c
Feedback: Think about the results/benefits of upwelling.
Question 43 of 75
1.33/ 1.33 Points
Page 16
The density of seawater
increases
with:
A.increasing salinity
B.increasing temperature
C.decreasing pressure
D.decreasing temperature
E.a and d
Feedback: Increases in density due to cold temperatures and higher salinity serve to increase pressure
at depth.
Question 44 of 75
1.33/ 1.33 Points
Which of these physical forces travels the
greatest distance
in seawater?
A.light penetration
B.sound waves
C.electric current
D.magnetic forces
Feedback: That is how sonar and echo-location by marine mammals works.
Question 45 of 75
1.33/ 1.33 Points
Changes in the density of seawater are caused
mostly
by changes in:
A.temperature
B.pressure
C.salinity
D.all of the above
E.a and c
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