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MB Ch 9a
Test Description: Currents
Instructions: Answer all questions to get your test result.
1) without current the world's climates would be
A
no different
B
more moderate
C
more extreme
2) during a warm phase ENSO event, warm water ____________. this event causes ___________
A
accumulaties in the Eastern Pacific, near South America, dramatic weather changes
B
accumulaties in teh Western Pacific, near the US , stable weather
C
accumulaties in teh Eastern Pacific, near South America, stable weather
D
accumulaties in teh Western Pacific, near the US, dramatic weather changes
3) thermohaline circulation is water movement caused by
A
water density differences
B
pelagic organisms
C
wind
4) based on density stratification, the primary water mass classifications include
A
intermediate water, deep water and photic water
B
central water, intermediate water, and deep water
C
surface water, deep water and photic water
D
photic water, surface water, and bottom water
5) the primary source of deep and bottom water is from
A
the equator due to evaporation raising the salinity and density
B
high latitudes due to freezing and cooling raising the salinity and density
6) the general pattern of thermohaline circulation is that of redistributing hear through the sinking of dense water, which causes deep water to rise and eventually enter the surface currents
A
true
B
false
7) the ocean conveyor belt is improtant because
A
it redistributes heat and moderates the Earth\\\'s climate
B
it is the primary methodf fishermen have to process what they catch
C
none of the answers are correct
8) The _____ method studies currents by travelling with their flow. the ______ methdo studies currents by measuring the water that flows by a fixed point
A
Eularian, Lagrangian
B
Drouge, Lagrangian
C
Lagrangian, Eularian
D
Eularian, Doppler
9) Examples of instruments or methods used by study currents are
A
all of these answers are correct
B
satellites, radioactive chemicals and rubber ducks
C
drouges and argo floats
D
flow meters and doppler acoustic current meters
10) The test is on what chapter
A
Chapter 8 and 9
B
Chapter 9
C
Chapter 7
D
Chapter 8
*select an answer for all questions
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