Warm-up Week 4 The energy that drives surface ocean currents comes from ____. a. wave action c. temperature differences b. wind d. salinity variations.

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Presentation transcript:

Warm-up Week 4 The energy that drives surface ocean currents comes from ____. a. wave action c. temperature differences b. wind d. salinity variations Ocean currents that move toward the poles are ____. a. warm in the Northern Hemisphere and cold in the Southern Hemisphere b. cold c. warm The influence of cold currents is mostly felt in the ___. a. tropics c. higher latitudes during winter b. higher latitudes d. middle latitudes during winter during spring

“Waves & Tides” 16.2

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