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← GeographyWhich process sustains cold water upwelling along continental western coasts?
A)Coriolis effect due to wind stress✓
B)Thermohaline circulation variability
C)Tidal forcing from lunar alignment
D)Sea ice formation thermal convection
💡 Explanation
When wind blows along the western coasts, the Coriolis effect deflects surface water offshore because Earth's rotation creates an apparent force acting perpendicular to the wind direction. Therefore upwelling results, rather than thermohaline driven flow, tidal forcing, or ice convection which require different density or astronomical mechanisms.
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