OCEAN 320 Midterm Exam | Questions and Answers (Complete Solutions)
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OCEAN 320 Midterm Exam | Questions and Answers (Complete Solutions) Which of the following is NOT a reported issue related to PCB in Beluga Whales in the St Lawrence seaway? -impaired mammary glands -rare cancerous tumors - heart disease -reduced birth rate What best describes a "Neuston" in the ...
What best describes a "Neuston" in the context of life in the ocean?
-it is a philosophy for "new age" ocean thinking
-it is s deep-sea life form found to have high levels of POP chemicals
-It is related to shallow water ecosystems
-It is part of the anatomy of Cetaceans
The current world population is near 7,765,000,000
To write this in scientific notation it would be........ 7.76 X 10x
What is the exponent or power of ten represented by the "x"
-11
-10
-9
-7
DDT would be characterized as this kind of molecule......
One safeguard against undetected _______ in an area of study is to have many
different investigators or groups of investigators working in it.
- bias
-data
-truth
-knowledge
Which of the following would be considered an inference?
-surface rocks patterns that are evident after extensive geologic mapping
,-a map of the subsurface of the Earth based on rock samples collected in drill cores
-observed (measured) deformation caused by moving plates
- a map of the subsurface features of the Earth based on a remote sensing tool
Please select all sources of chemical ocean pollution from the choices below (more than
1)
-silt
- petroleum
- pop's
- toxic metals
Science ethical practices are guided by several factors. (select all that apply from the
following list)
-narrow focus
-data manipulation
- openness
- accurate record keeping
- replication
- peer review
Unfortunately PCB's have yet to be banned in the U.S. ?
-True
- False
In relation to Mass-Die Offs of Cetaceans, one scientific theory in our readings explains
the stranding and die-off of whole pods of whale and dolphins as a dementia like
problem resulting from PCB's effecting the brain
-True
- False
This process forces toxins to be concentrated the higher up the food chain you go
Bioaccumulation
Because of the "social" nature of science, the ______________ of scientific information
is crucial to its progress
Dissemination
Some of the highest resolution scans of the ocean floor that can reveal sunken ships
are made with.....
side scan sonar
When referring to a water molecule, what does "polarity" mean?
-A water molecule has poles of rotation like the Earth
, -A water molecule is flexible like a long pole
- A water molecule has opposite charges like magnetic poles
-A water molecule is up one day and down the next
The deep ocean currents driven by cold dense water sinking to the ocean bottom have
been compared to.....
-an infinity loop
-a polar escalator
-a submarine sandwich
- a global conveyer belt
What is "the most successful oceanographic sciences satellite of all time" and according
to Walter Monk?
- Topex-Poseidon
-Landsat
-Jason
-Oceanos
George Hadley figured out the reason that the trade winds constantly blow toward the
inter-tropical convergence zone...which is...?
-cold pushing south toward the hot tropics
- constantly rising equatorial air
-ocean current coupling with winds
-the easterly spin of the Earth
How is it possible to map the shape of the ocean floor from a satellite in space?
- the shape of the ocean surface is not flat, the surface is shaped like the ocean bottom
below due to gravity
-the density of the ocean water can be measured by thermal radiation and the density
correlates with the depth of the ocean
-certain wavelengths of energy can penetrate the water to reflect off the sea floor
-the ocean surface is variably shaped so that it creates a mirror image (or opposite
shape) of the ocean floor
The waves at Maverick's in Half Moon Bay California are mostly created by which of the
following....
- the sea floor conditions
-the tidal forces along that part of the coast
-the dispersion of energy by ocean currents
-the southerly direction the coastline faces
Which of the following locations has a lower degree of primary productivity?
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