World Oceans Test 3

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Thermohaline circulation is the dominant type of water flow, responsible for moving the largest quantity of water in the ocean.
a. True
b. False
True
Ocean basins are open systems between which water is exchanged by thermohaline circulation.
a. True
b. False
True
Thermohaline circulation plays an important role in the climate due to its effect on the redistribution of _____ on the Earth's surface.
a. Humidity
b. Heat
c. Salt
d. Water
b. Heat
Coriolis deflection and Ekman transport cause water in the surface ocean gyres to be transported:
a. Inward, toward the center of they gyre
b. Outward, away from the gyre
a. Inward, toward the gyre
The large wind-driven circulation gyres at the surface of the ocean create an 'mound' of water with a height of approximately 1 meter near the center of the gyre.
a. True
b. False
True
The geostrophic flow, which drives the circulation of water inside the ocean gyres, is caused by a dynamic balance between __ and __.
a. wind; gravity
b. gyres; continental masses
c. north polar magnetic fields; south polar magnetic fields
d. Coriolis deflection; pressure gradients along the "mound" of water in the gyre
d. Coriolis deflection; pressure gradients along the "mound" of water in the gyre
The most important force that generate waves in the open ocean:
a. gravity
b. surface tension
c. wind
c. Wind
The forces that cause the dissipation(flattening) of waves in open water:
a. gravity
b. surface tension
c. wind
d. A and B
e. B and C
d. A and B
The energy of a water wave is mainly determined by:
a. Wave height
b. Wave speed
c. Wavelength
d. None of the above
a. Wave height
The equation for wave speed is Celerity= (wave length/wave period). This equation indicates that:
a. Waves of long wavelength travel at high rate of speed.
b. Waves of short wavelength travel at a high rate of speed.
a. Waves of long wavelength travel at high rate of speed
Tsunami waves travel at a high rate of speed due to their long wavelengths
a. True
b. False
a. True
The shaking of the Earth's surface during the March 2011 earthquake and tsunami in Japan was caused by sea floor spreading...
a. True
b.False
a. True
Waves in will break or collapse because:
a. the wave speed is too high
b. the wave steepness is too great
c. the wave length is longer than the wave height
b. the wave steepness is too great
Water particles that are set in motion by surface waves will collide with the sea floor if:
a. The water depth is less than one half the wavelength
b. the water depth is greater than one half the wavelength
a. The water depth is less than one half the wavelength
The forces responsible for generating the ocean tides are:
a. gravity
b. wind
c. centrifugal force of Earth's rotation
d. gravitational forces of the sun and moon
e. C and D
e. C and D
The most important factor influencing the Earth's tides is ___.
a. the sun
b. the moon
c. the rotation of the Earth
d. the configuration of the tidal basin
b. the moon
The sun's gravitational effect on the Earth is much less than that of the moon because___.
a. the moon is smaller than the sun
b. the moon moves more rapidly than the sun
c. the sun is made of gas and the moon is made of rocks and minerals
d. the sun is further from the Earth than the moon
d. the sun is further from the Earth than the moon
A tidal pattern of two high tides and two low tides each day is known as a diurnal pattern.
a. True
b. False
b. False
The tide patterns follow a cycle that is repeated on a ___ timescale.
a. weekly
b. monthly
c. semi-monthly
d. annually
b. monthly
The tide pattern follows a 4 week cycle because ____.
a. it takes 4 weeks for the Earth to complete one orbit around the moon
b. it takes 4 weeks for the moon to complete one orbit around the Earth
b. it takes 4 weeks for the moon to complete one orbit around the Earth
Spring tides only occur in the Spring and neap tides only occur in the Autumn of each year.
a. True
b. False
b. False
The tidal bulge on the side of the Earth opposite from the moon is due to ____ force generated by Earth's rotation.
a. Centrifugal
b. Centripetal
c. Ebb Currents
d. Coriolis
a. Centrifugal
The crest of the tide wave is called...
high tide
When the Earth, Moon, and Sun are aligned, which phase of the moon might you see?
a. Full
b. 1/4
c. 3/4
d. New
e. both A and D
e. both A and D
Spring tides will occur during ____.
a. the new moon
b. the 1/4 moon
c. at the full moon
d. both A and B
e. both A and C
e. both A and C
During the full moon, the water level at high tide will be
a. average height
b. higher than average
c. lower than average
b. higher than average
During the new moon, the water level at low tide will be
a. average height
b. higher than average
c. lower than average
c. lower than average
When the Earth, Moon, and Sun are oriented at a 90 degree angle to each other, which type of tides occur?
a. Spring
b. Diurnal
c. Neap
d. Mixed
c. Neap
The "tidal range" is the ____.
a. distance between high and low water marks on a shoreline
b. the vertical distance between high tide and low tide
b. the vertical distance between high tide and low tide
Areas that have one high tide and one low tide each day have ____ tides.
a. Diurnal
b. Mixed
a. Diurnal
An "amphidromic system" describes an ocean basin with a ___ tidal motion relative to a fixed node.
a. Polygonal
b. Pentagonal
c. Octagonal
d. Rotary
d. Rotary
A visible wave that surges upriver with the incoming tide is called a __.
a. tidal surge
b. tidal bore
c. tsunami
d. seismic sea wave
e. flood tide
b. tidal bore
The water column habitats of the ocean is referred to as the __ province.
a. Pelagic
b. Littoral
c. Benthic
d. Intertidal
e. Bathyal
a. Pelagic
The sea floor habitats of the oceans are referred to as the __ province.
a. Pelagic
b. Epipelagic
c. Oceanic
d. Neritic
e. Benthic
e. Benthic
The study of the interrelationships between the physical and biological aspects of an environment is ___.
a. Geology
b. Ecology
c. Oceanology
d. Biology
b. Ecology
A/an ____ is the totality of an environment including the living and nonliving parts.
a. Niche
b. ecosystem
c. aspect ratio
d. habitat
e. community
b. ecosystem
The layer of the oceanic zone that extends from the surface to about 200 m is called the ____ zone.
a. Mesopelagic
b. Epipelagic
c. Abyssalpelagic
d. Bathypelagic
b. Epipelagic
The benthic province is broken into five zones based on ___.
a. Salinity
b. Density
c. Temperature
d. Depth
e. Pressure
d. Depth
The zone of the benthic province which is sometimes exposed to the atmosphere is termed the ___.
a. Intertidal zone
b. Subtidal zone
c. Benthic zone
d. Splash zone
a. Intertidal zone
The ___ zone of the benthic province encompasses the deep ocean trenches and all the bottom with a depth over 6,000 m.
a. A. Littoral
b. Abyssal
c. Sublittoral
d. Bathyal
e. Hadal
e. Hadal
The pelagic province is sometimes broken into 3 zones based on ___.
a. Salinity
b. Density
c. Temperature
d. Light penetration
e. Pressure
d. Light penetration
The zone of the pelagic ocean where photosynthesis can be carried out effectively during the daylight hours is the ___ zone.
a. dysphotic
b. aphotic
c. photic
d. photosynthetic
e. photographic
c. photic
In the open ocean, the farthest that sufficient light for photosynthesis can penetrate is ___.
a. 10 m
b. 50 m
c. 100 m
d. 500 m
c. 100 m
Which of the following is sometimes referred to as the "twilight" zone?
a. Dysphotic
b. Aphotic
c. Photic
a. Dysphotic
An important ecological role of ____ is to decompose organic matter.
a. bacteria and fungi
b. single-celled organisms that posses a true nucleus
c. bacteria and blue-green algae
d. plants attached to the sea floor
e. marine animals
a. bacteria and fungi
The term used for all floating and drifting organisms in the sea is:
a. plankton
b. polychaetes
c. monera
d. nekton
e. benthos
a. plankton
The nekton include all _____.
a. animals found in the water column
b. actively swimming animals
c. passively drifting animals
d. animals living on the bottom
b. actively swimming animals
The bottom dwellers of the oceans are referred to as the ____.
a. Plankton
b. Polychaetes
c. Monera
d. Nekton
e. Benthos
e. Benthos
Floating and drifting plans in the oceans are referred to as _____.
a. Zooplankton
b. Phytoplankton
b. Phytoplankton
Plants that live on the sea bottom are termed ____.
a. Epifauna
b. Epiflora
c. Infauna
b. Epiflora
Animals that live on the sea bottom are termed ____.
a. Epifauna
b. Epiflora
c. Infauna
a. Epifauna
Most marine fish have cellular fluids with salinity ____.
a. higher than the salinity of sea water
b. lower than the salinity of sea water
c. the same as sea water
d. unrelated to the salinity of sea water
b. lower than the salinity of sea waterr
Most marine fish osmoregulate the salinity of their cellular fluids by ___.
a .drinking large quantities of sea water
b. excreting excess salt ions through their gills
c. urinating infrequently
d. all of the above
d. all of the above
The friction between a fish's body and the surrounding water is called _____ drag.
a. form
b. turbulent
c. surface
d. tail
a. form
Form drag is proportional to the ____ of a fish's body.
a. length
b. weight
c. height
d. cross-sectional area
e. speed
d. cross-sectional area
The grouping of distinct benthic communities into parallel bands along a intertidal sone of shoreline is termed:
a. Stratification
b. Vertical zonation
c. Illuviation
b. Vertical zonation
The grouping of distinct benthic communities into parallel bands along a shoreline is caused by ____.
a. The adaptations of different organisms to tolerate specific environmental conditions in the intertidal zone
b. the adaptations of different organisms to avoid predators in the intertidal zone
c.the differing abilities of organisms to compete for resources in specific area of the intertidal zone
d. all of the above are correct
d. all of the above are correct
The shell of a diatom is called a ___.
a. Frustule
b. Protoconch
c. Theca
d. Skeleton
e. Beak
a. Frustule
When phytoplankton populations increase, it is referred to as a phytoplankton ____.
a. crop
b. harvest
c. bloom
d. fruit
c. bloom
More than 90% of the ocean's plants are ____.
a. algae
b. trees along the tidal flats
c. found along coastal areas
d. rooted in the bottom
e. seed bearing
a. algae