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Geography

Which outcome occurs when glacial retreat exposes extensive loess deposits to fluvial erosion?

A)Increased suspended sediment river load
B)Formation of resilient organic-rich paleosols
C)Enhanced long-term carbon sequestration rate
D)Decreased downstream floodplain sedimentation

💡 Explanation

Increased suspended sediment occurs because fluvial erosion readily entrains fine loess particles into waterways. This mechanical weathering increases the river’s sediment load therefore causing increased turbidity, rather than enhanced soil stability typically from vegetation.

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