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← GeographyWhich consequence results when uplift along a fault displaces an alluvial fan?
A)Stream incision and terrace formation✓
B)Increased chemical weathering rates
C)Enhanced glacial ice accumulation
D)Wider active channel floodplain
💡 Explanation
Stream incision and terrace formation occurs because the increased gradient causes increased stream power. The mechanism is downcutting due to base level lowering; therefore, the stream erodes downward, rather than side to side as in floodplain widening.
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