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Geography

Which outcome occurs when persistent katabatic winds encounter an orographic barrier?

A)Formation of loess deposit regions
B)Intensified chemical weathering of bedrock
C)Increased glacial ice ablation rates
D)Decreased deposition in alluvial fans

💡 Explanation

Loess forms as windblown silt accumulates; because katabatic winds funnel across valleys, then undergo orographic lifting, wind velocity drops, resulting in widespread aeolian deposition, therefore, forming loess blankets, rather than erosion or altering other geological deposits.

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