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Oceanography Review Flashcards | StudBud
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Oceanography Review
Oceanography Review
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1
Deep ocean currents tend to be __________
warm and low salinity
warm and high saliity
cold and low salinity
cold and higher salinity
2
This ocean zone accounts for approximately the top 200 meters of the ocean. Receives light
aphotic zone
abyssal zone
photic zone
benthic zone
3
The moon has a stronger effect on Earth's tide than the sun because ...
the moon is closer
the moon is larger
the moon is more dense
the moon is made of iron
4
Rock formed from weathering, deposition, and cementation.
metamorphic
sedimentary
igneous
5
The ocean drives much of Earth’s weather and causes climate near the ocean to be ......
mild and temperate
continously tropical
colder and drier
highly variable and unstable
6
Trenches are formed when ___________ crust ___________ continental crust.
continental, diverges from
continental, collides with
oceanic, diverges from
oceanic, subducts under
7
As global ice caps melt, sea level
lowers
rises
no effect
remains the same
8
What is feature A?
continental rise
continental slope
continental shelf
abyssal plain
9
Identify Area
B
of the continental margin.
abyssal plain
continental rise
continental shelf
continental slope
10
Ocean algae is a major source of atmospheric _______________.
water vapor
Oxygen
methane
carbon dioxide
11
Approximately _______ of the Earth is covered by water.
71%
97%
50
3%
12
Water is a _________ storage of heat energy.
poor
good
13
Thermohaline Current. Which letter represents an area at the poles?
B
A
14
Excessive nutrients such as nitrogen and phosphates are mostly introduced into water by .....
photosynthetic organisms
acid rain
burning fossil fuels
farming runoff and sewage treatment
15
How many high tides will occur per day?
1
2
4
16
Which type of water will be the most dense?
cold, low salinity
warm, high salinity
cold, high salinity
warm, low salinity
17
What atmospheric gas has a negative impact on marine organisms with calcium carbonate shell?
oxone
nitrogen
carbon dioxide
oxygen
18
Identify Area
C
of the continental margin.
continental slope
continental rise
continental shelf
seamount
19
Seamounts are undersea mountains that are typically formed by
The Coriolis Effect
deposits of sediments
volcanic activity
diverging plates
20
Features of the seafloor that are related to _______________ include mid-ocean ridges and trenches
wind
plate tectonics
erosion
gravity
21
Which represents a warm water current?
A
B
22
______________is the major mechanism of energy transfer in the oceans, atmosphere, and Earth’s interior
convection
radiation
conduction
23
Excessive nutrients such as nitrates and phosphates, can cause ......
large biodiversity
decreased oxygen levels. "dead zones"
increased oxygen levels
decreased carbon dioxide levels
24
Mid-ocean ridges are formed when ___________ crust ____________ oceanic crust.
continental,subducts under
oceanic, collides with
continental, diverges from
oceanic, diverges from
25
The measure of the amount of salts in a water solution is known as
infiltration
salinity
gradient
discharge
26
Which is NOT true about an "active" continental margin?
movement of tectonic plates
features such as trenches and volcanoes
earthquakes
east coast of US
27
A partially enclosed area where fresh and salt water mix.
estuary
delta
tributary
confluence
28
Which area will most likely have the highest biological activity?
B
C
A
29
Why is the eastern coast of the US a "passive" continental margin?
area of subduction zone
occurrences of earthquakes
presence of volcanoes and trenches
no presence of plate boundaries
30
Rock made through the process of melting and cooling
metamorphic
sedimentary
igneous
31
Surface waves are generally driven by ..
gravitational pull of the moon
tectonic activity
volcanic activity
wind
32
Unusually warm ocean temperatures in the Pacific. Increase rain in US south.
El Nino
trade winds
La Nina
Coriolis effect
33
What is the tide where you are?
low tide
high tide
34
The global ocean current system driven by temperature and density differences is known as
el Nino
The Coriolis Effect
Thermohaline circulation
rip currents
35
Dissolved carbon dioxide causes the water to become ....
less acidic
abundant in nutrients
more acidic
a dead zone
36
The Ocean's Thermohaline Circulation is cause by ...
differences in density caused by temperature and salinity
the wind
the Coriolis effect
the Greenhouse effect
37
The tides are the periodic rise and fall of water level caused by .....
the rapid rotation of the Earth
gravitational pull of the moon and sun
imbalance of water levels in the Atlantic and Pacific
gravitational pull of the sun
38
Unusually cold water in the Pacific. Warmer and drier in the US South
El Nino
jet stream
La Nina
Coriolis effect
39
Which is an example of an estuary?
Great Dismal Swamp
Chesapeake Bay
Atlantic Ocean
James River
40
The climate near the ocean is more mild than the climate in the interior of continents. Why?
decreased evaporation
generally these areas are at lower latitudes
stored heat in the water
increased volcanic activity
41
What would happen to Ireland if the Gulf stream changed direction?
the climate would get much warmer and wetter
the climate would get much colder
Hurricanes could increase there
volcanic activity would increase
42
Describe the water at location A.
cool and nutrient poor
warm and nutrient poor
cool and nutrient rich
warm and nutrient rich
43
Which factor
increases
salinity?
precipitation
freshwater flow from rivers
melting ice
evaporation
44
"Upwelling" is the process in which ____________________ water rises toward the surface from the deep
cold, oxygenated
cold, nutrient rich
cold, nutrient poor
warm, toxic
45
Most waves on the ocean surface are generated by ________.
the coriolis effect
convection currents
volcanic activity
wind
46
What feature is D?
continental slope
continental shelf
abyssal plain
continental rise
47
Which area would have the lowest salinity?
around the mouth of a large river
an enclosed sea with little interaction with open ocean
equitorial oceans with high evaporation
an inland sea in a arid climate
48
Which is NOT true?
high salinity water is less dense and rises
cold water sinks at the poles
cold water moves towards the equator
warm water moves towards the poles
