Practice - Ocean Currents, Tides, and Waves

What is upwelling?

• Upwelling is the sinking of cold water to the ocean depths.
• Upwelling refers to the evaporation of ocean water due to heat.
• Upwelling is the movement of surface water away from the shore.
• Upwelling is the rising of nutrient-rich water from the ocean depths to the surface.

Which diagram shows the Pacific Ocean during an El Nino event?

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

What does hypoxic mean?

• Lack of carbon dioxide.
• Normal oxygen levels.
• Excessive oxygen levels.
• Deficient in oxygen.

Tags

NGSS.HS-LS2-3

Which current pictured is called The Gulf Stream?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-6

Which currents pictured are cold water currents? Select ALL of the choices that are correct.

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-6

What does the blue line represent in the Thermohaline circulation?

• Warm salty water

• Warm water

• Cold water

• Cold salty water

Tags

NGSS.MS-ESS2-6

The ocean conveyer belt is also called thermohaline circulation because it is driven by

• ocean currents and wind patterns
• temperature and salinity
• biological activity and sedimentation
• gravity and atmospheric pressure

Tags

NGSS.MS-ESS2-6

During an El Nino year, the tradewinds

• strengthen and maintain direction
• increase in speed and intensity
• weaken and can reverse direction
• remain unchanged throughout the year

Tags

NGSS.MS-ESS2-6

There is more cloud formation and rainfall over

• cold ocean water

• warm ocean water

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

Coral reefs generally require warm water to survive and grow. Based in this information, which of these locations would be more likely to have coral reefs?

• The East Coast of Australia

• The West Coast of Australia

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-4