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Oceanography Ch. 13
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Questions in this quiz (20)
1
Instruments attached to marine animals record __________.- Aanimal movements
- Benvironment of the animal
- Cfood they eat
- DAll of the above are correct.
2
Tagged beluga whales helped scientists discover which feature of Arctic sea-ice cover?- Auniformly cold water beneath the ice
- Bmore layers of ice beneath the initial layer
- Ca thin layer of relatively warm water beneath the ice
- Dice extending from the surface to the ocean bottom
3
ROVs and AUVs are particularly important for increasing knowledge of __________- Amid- and deep-water marine life
- Bnear surface marine life
4At the present rate, modern survey and mapping of the ocean floor will take __________ years to complete.
- A10
- B25
- C50
- Dmore than 100
5
What added feature does the Slocum glider have compared to the ARGO float?- Athe ability to cover greater distances
- Bonger sampling life span
- Ca buoyancy changing technique
- DBoth a and b are correct.
6
The drill ship Chikyu, placed in operation in 2006, has what capability different from DSDP and ODP drilling sites?- Adrilling near salt deposits
- Bdrilling near subduction zones
- Cdrilling near oil and natural gas deposits
- Ddrilling near mid-ocean ridges
7What augmented capability does the AUV have?
- AIt moves faster than gliders.
- BIt does not rely on a cable tethering it to a ship.
- CIt measures salinity.
- DBoth a and b are correct.
8
Ocean floor observatories include all of the following except for __________.- Aearthquake seismometers installed in holes drilled in the deep sea
- Ban observatory installed on the underwater active volcano Loihi, which will become the next Hawaiian Island
- Cbottom observatories on continental shelves
- Dmanned glass-domed research laboratories
9
Communication with ocean floor observatories is achieved through which of the following techniques?- Aacoustic transmission of data through water
- Bnetworks of submarine cables
- Cthe recovery of instruments and data by ships
- DAll of the above are correct.
10
The best ocean bottom maps come from __________.- Adeclassified military data
- Bsatellite ocean surface altimetry data
- Cshipboard bottom acoustic and sonar scanning
- DAll of the above are correct.
11
Advances in ocean-observing technology are needed for studying __________.- Athe coastal zone
- Bthe climate system
- Cmarine life
- Dthe ocean floor
- EAll of the above are correct.
12Coastal zone ocean observing techniques are critical because that is where __________.
- Athe impacts of human population pressure on the ocean are greatest
- Bwater is shallow, so open ocean techniques are not applicable
- Cthe biosphere, geosphere, hydrosphere, and atmosphere all meet
- DAll of the above are correct.
13Humankind's ability to investigate the ocean depends upon __________.
- Agood weather
- Bappropriate observing systems
- Csatellite observations alone
- Dshipboard observations alone
14he piloted submersible vehicle that reached very close to the bottom of the Challenger Deep was __________.
- Athe bathysphere
- Ba bathyscaph
- Cthe Trieste
15
Data on marine life gained from using gene-sequencing techniques are most essential for understanding the __________ cycle.- Acarbon
- Boxygen
- Cnitrogen
- Dargon
- Esulfur
16
Microchips designed for chemical analysis of seawater must overcome what problem to perform correctly?- Athe presence of toxic chemicals
- Bbio-fouling
- Cexcess carbon dioxide
- DNone of the above is correct.
17
Better ocean bottom maps are required for __________.- Arefining plate tectonic models
- Bmeasuring sea-floor roughness to predict deep ocean mixing
- Csafe laying of deep ocean electrical and fiber optic cables
- Dtsunami prediction models
- EAll of the above are correct.
18During the European Age of Discovery that started in the 15th century, all regions except __________ were discovered, explored and colonized.
- AAustralia
- BAntarctica
- CAsia
- DThe Americas
19
Navigation methods developed prior to and during the 1700s included __________.- Aaccurate clocks to determine longitude
- Bdetermining latitude by measuring the angle of the North Star above the horizon
- Cthe magnetic compass
- DAll of the above are correct.
- ENone of the above is correct.
20At the present time, modern survey and mapping has covered about __________% of the ocean floor:
- A10
- B25
- C50
- D75
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- Quiz on Oceanography Ch. 13, created by allebeau2 on 19/12/2015.
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- allebeau2
- Language
- English
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