Ocean Currents

Which of the following does NOT drive ocean currents?

• Salinity 
• Prevailing winds
• Gravity
• Precipitation 

High productivity and nutrient availability in the ocean occurs in areas with 

• Gyres
• Upwelling 
• Warm waters
• Prevailing westerlies

Climate change could potentially disrupt which one of the following phenomena?

• El Nino- Southern Oscillation (ENSO)
• Thermohaline Circulation 
• Rotation of Southern Hemisphere gyres
• The polar current along Antarctica

Which of the following is NOT truw of an El Nino-Southern Oscillation (ENSO) event?

• It causes increased upwelling on the coast of South America
• It causes water conditions in the Southern United States
• It can last from several weeks to several years
• It often begins near Christmas

Gyres do all of the following EXCEPT

• Redistribute heat in the ocean
• Result of Coriolis effect
• Redistribute nutrients from the deep ocean
• Affect the temperatures of coastal areas