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← GeographyWhich mechanism influences stream patterns deflected eastwards near the poles?
A)Coriolis effect deflecting stream flows✓
B)Thermal expansion increasing stream velocity
C)Precipitation shadow reducing stream gradient
D)Glacial isostasy altering continental uplift
💡 Explanation
When moving across latitude, the Coriolis effect deflects objects because Earth rotates, causing an apparent force that deflects moving objects to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Therefore, stream patterns get deflected eastward, rather than through thermal expansion, precipitation changes, or glacial activity, each requiring independent mechanisms.
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