Practice Test 2

Deep ocean currents are driven primarily by ________ and caused by ________.

• density differences; the Coriolis effect and land
• density differences; differences in salinity and temperature
• latitude; differences in salinity and land
• wind; the Coriolis effect and land
• wind; gravity and density

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NGSS.MS-ESS2-6

Surface ocean currents are driven primarily by ________ and modified by ________.

• density differences; the Coriolis effect and land
• density differences; differences in salinity and temperature
• latitude; differences in salinity and land
• wind; the Coriolis effect and land
• wind; gravity and density

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NGSS.MS-ESS2-6

Which of the following statements is true of surface ocean currents?

• Surface currents concentrate warm water in the center of the gyre at mid latitudes
• Surface currents form circular patterns in the major ocean basins called "gyres."
• Surface currents occur within and below the pycnocline.
• Surface currents transport cold water toward the poles.
• Surface currents transport warm water toward the equator.

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NGSS.MS-ESS2-6

Equatorial currents are driven by the ________.

• Coriolis force
• density
• trade winds
• westerlies

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NGSS.MS-ESS2-6

Which of the following is NOT a Western boundary current?

• California Current
• Gulf Stream
• Peru Current
• East Australian Current

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NGSS.MS-ESS2-6

The smaller circular movement of water seen here near the Gulf Stream current are called ...

• Swirlies
• Eddies
• Ocean blobs
• Rounders

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NGSS.MS-ESS2-6

A bottle is thrown into the Atlantic off the western coast of South Africa. Where is it most likely to land?

• Europe
• Australia
• Antarctica
• South America

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NGSS.MS-ESS2-6

These large circular patterns made by ocean currents are called

• gyres
• flushes
• spinners
• whirlpools

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NGSS.MS-ESS2-6

Western boundary currents tend to be

• warm water currents
• cold water currents
• all currents are the same temperature
• temperatures are random

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NGSS.MS-ESS2-6

Upwelling brings

• Cold water to the bottom
• Cold water to the surface
• Warm water to the bottom
• Warm Water to the surface

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NGSS.MS-ESS2-6