Quiz Review: Water Moves in Patterns in Earth's Oceans

Which of the following can cause an increase in density that results in a deep ocean currents

• The sun heats the water’s surface.

  
  

• A warm wind blows across cold water.

  
  

• An iceberg melts, adding fresh water to ocean water.

• Warm water loses energy to its surroundings and cools.

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Which three factors most directly affect surface currents in the oceans?

• upwelling, convection, and the sun’s energy

• deep currents, convection currents, and surface winds

  
  

• dissolved solids, dissolved gases, and the sun’s energy

  
  

• surface winds, the Coriolis Effect, and continental deflection

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How does convection cause ocean currents?

• During the process of convection, energy is transferred to the atmosphere, forming winds. These winds power surface currents.

• During the process of convection, the heating of surface water by the sun results in upwelling.

• During the process of convection, energy in warm water is lost to its surroundings. The water cools, becomes denser, and sinks.

• During the process of convection, more minerals and gases dissolve in warm water. This increases the density of the warm water and causes it to sink.

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Currents change direction by hitting the continents or other large landmasses.

• Ocean Currents

• Continental Deflection

• Coriolis Effect

• Upwelling

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Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere.

• Ocean Currents

• Continental Deflection

• Coriolis Effect

• Upwelling

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Movements of ocean water located far below the surface.

• Ocean Currents

• Convection Currents

• Deep Currents

• Surface Currents

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Currents are on the surface or less than a 100 meters deep (330 feet)

• Ocean Currents

• Convection Currents

• Deep Currents

• Surface Currents

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The Gulf Stream carries _____________ water from the east coast of The United States to the West coast of Europe.

• Cold

• Warm

• Freezing

• Fresh

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What causes surface currents north and south of the equator to move in different directions?

• Gases in the ocean

• The rotation of the Earth

• Temperature differences

• Continental deflection

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What does the blue line represent in the Thermohaline circulation?

• Warm salty water

• warm water

• cold water

• cold salty water

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