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IB Marine First Semester Flashcards | StudBud
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IB Marine First Semester
IB Marine First Semester
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#first semester #final
Flashcards
36 cards
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Questions
36
Answers
1
Identify the feature labeled with a "I" in the diagram below:
abyssal plain
continental slope
continental shelf
submarine canyon
2
What is the greatest change in density over depth called?
thermocline
mixocline
halocline
pycnocline
3
What is an incoming tide called?
Flood
Flow
Ebb
Slack
4
Which of the following ions acts in the buffering capacity of seawater?
Calcium ions
Bicarbonate ions
Carbonate ions
Hydrogen ions
5
Which current is a cold current?
Brazil
California
North Atlantic Drift
Gulf Stream
6
Which type of tide is shown in the diagram below?
Diurnal
Semi-diurnal
Mixed Semi-diurnal
Neap
7
What is the speed of sound in water?
340 m/s
1350 m/s
1500 m/s
550 m/s
8
Identify the ocean labeled with a "Q" in the diagram below
Beaufort Sea
Chukchi Sea
Gulf of Alaska
Bering Sea
9
Which type of plankton spends its entire life in planktonic form?
meroplankton
holoplankton
phytoplankton
zooplankton
10
Identify the feature labeled with an "A" below.
Juan de Fuca Ridge
Marian trench
Aleutian trench
mid-Atlantic ridge
11
Which current is labeled with a "C" below?
Peru
Agulhas
Brazil
Benguela
12
What causes the crash in nutrients in early summer?
Increase in light availability
Increase in phytoplankton
Increase in river runoff
Increase in zooplankton
13
Which type of plankton is cellulose-based?
coccolithophore
dinoflagellate
zooplankton
diatom
14
What color of light reaches the greatest depth in the ocean?
Red light
Green light
Blue light
Yellow light
15
Which of the following is true of El Nino events?
warmer sea surface temperatures
strengthening of tradewinds
decreased moisture in the atmosphere of the E. Pacific
more upwelling
16
What trophic level do most zooplankton belong to?
primary producers
primary consumers
secondary producers
secondary consumers
17
The island below is in the Northern hemisphere. Which side of the island experiences upwelling?
South
East
West
North
18
What percentage of Earth's surface is covered by ocean water?
70.8%
29.8%
29.2%
70.2%
19
Where are coccolithophores located?
In cool, nutrient-rich water
In warm, nutrient-rich water
In warm, nutrient-poor water
In cool, nutrient-poor water
20
Which of the following would cause the greatest decrease in density?
Increase temperature, increase salinity
increase temperature, increase pressure
decrease pressure, increase salinity
decrease salinity, decrease pressure
21
Which tide occurs during the full & new moon phases when the Sun-Moon-Earth are in syzygy?
Diurnal Tide
Neap Tide
High Tide
Spring Tide
22
What is the study of Earth's magnetic reversals called?
continental drift
plate tectonics
hydrothermal sourcing
paleomagnetism
23
Which of the following is true of vertical migration?
phytoplankton rise during the night to feed
zooplankton rise to the surface during the night to feed
phytoplankton sink during the day to avoid predators
zooplankton rise to the surface during the day to feed
24
What is another name for the
Great Ocean Conveyor?
surface currents
thermohaline circulation
downwelling
upwelling
25
Which of the following is true of the SOFAR layer?
Depth of water where sound travels fastest but not very far
Depth of water where sound travels fastest but furthest
Depth of water where sound travels slowest but furthest
Depth of water where sound travels slowest but not very far
26
Seawater's ability to resist changes in pH is called
ocean acidification
calcium carbonate absorption
pH shift
buffering capacity
27
What is the primary origin of most of Earth's ocean water?
It has always been here
Meteors crashing to Earth
Outgassing of Earth's mantle
Underground springs
28
Which of the following describes organisms that are able to actively swim against the currents?
plankton
zooplankton
phytoplankton
nekton
29
Which portion of temperature-depth profile is found below the thermocline, cold, & isothermal?
mixed layer
thermocline
Deep layer
30
Where do El Nino events begin?
Atlantic ocean near Peru
Pacific ocean near Peru
Atlantic ocean near Brazil
Pacific Ocean near Hawaii
31
Identify the ocean labeled with a "N" in the diagram below
North Sea
Caspian Sea
Salish Sea
Black Sea
32
Identify the feature labeled with a "B" in the diagram below:
seamount
mid-ocean ridge
volcanic island
abyssal hills
33
Identify the feature labeled with an "G" below.
Juan de Fuca Ridge
Mariana trench
Cascadia Subduction Zone
mid-Atlantic ridge
34
Identify the feature labeled with an "D" below.
Aleutian trench
Juan de Fuca Ridge
East Pacific Rise
mid-Atlantic ridge
35
Identify the plankton shown in the diagram below:
coccolithophore
dinoflagellate
diatom
zooplankton
36
Identify the ocean labeled with a "B" in the diagram below
Indian Ocean
Bay of Bengal
Arabian Sea
Mediterranean Sea
