Which statements describe currents in the oceans? Check all that apply.El Niño is a current of water between Australia and North America.Currents occur at the surface of and deep within the ocean.The Coriolis effect contributes to the direction of current flow.Currents often change in unpredictable ways, causing climate change.Wind direction, the spin of Earth, and differences in temperature contribute to currents.
Answer
A
El Niño is a current of water between Australia and North America.
B
Currents occur at the surface of and deep within the ocean.
C
The Coriolis effect contributes to the direction of current flow.
D
Currents often change in unpredictable ways, causing climate change.
E
Wind direction, the spin of Earth, and differences in temperature contribute to currents.
Explanation
Ocean currents occur both at the surface and deep within the ocean, so statement B is correct. Earth’s rotation causes the Coriolis effect, which helps determine the direction currents flow, and winds and temperature differences also help drive currents, making C and E correct. El Niño is a climate pattern involving unusually warm Pacific waters, not simply a current between Australia and North America. Currents can influence climate, but statement D incorrectly says they often change unpredictably and cause climate change.
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