Chapter 7.4-7.7 Test Review

Which of the following is true of surface water circulation near Antarctica?

• A gyre is formed here.

• Two circumpolar currents dominate it, one current that moves water to the east and one current that moves water to the west.

• It is dominated by water flow directly away from the polar region toward the north.

• The surface ocean has no strong currents.

• The circulation of water around the Antarctic continent is driven by density differences.

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NGSS.MS-ESS2-6

When a meander from the Gulf Stream pinches off and isolates a body of water within the North Atlantic gyre, the body of water is called a _________.

• cold core ring

• cyclonic circulation

• geostrophic circulation

• Langmuir cell

• warm core ring

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NGSS.MS-ESS2-6

During winter months, monsoon winds over the Indian Ocean _________.

• flow from land to sea and are dry

• flow from land to sea and are wet

• flow from sea to land and are dry

• flow from sea to land and are wet

• The direction of airflow is unchanged but precipitation increases.

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NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

The El Niño Southern Oscillation can best be described as _________.

• relative changes between two different atmospheric pressure systems at high altitude

• the relationship between sea surface temperature and changing atmospheric pressure

• tidal differences between coastal Peru and Darwin, Australia

• variation in wind speed over the Pacific Ocean

• wind speed and wind direction differences along the equator

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NGSS.MS-ESS2-6

In which year was the Tropical Ocean-Global Atmosphere (TOGA) program initiated?

• 1981

• 1982

• 1983

• 1984

• 1985

How long does the Pacific Decadal Oscillation (PDO) last?

• 10-15 years

• 20-30 years

• 40-50 years

• 100 years

El Niño conditions occur on average about every _________.

• 1-2 years

• 2-10 years

• 10-15 years

• 15-20 years

• 20-25 years

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NGSS.MS-ESS2-6

When was the last El Niño event?

• 1980-1982

• 1982-1983

• 1997-1998

• 2015-2016

• 2023-2024

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NGSS.MS-ESS2-6

Peru's residents are familiar with ENSO as it brings a warm current that reduces populations of which animal?

• Tuna

• Anchovies

• Salmon

• Cod

• Eels

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

The North Atlantic Drift is also called the _______.

• North Atlantic Current

• Labrador Current

• Norwegian Current

• Canary Current

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NGSS.MS-ESS2-6