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Geography

Which consequence results when seasonal monsoon-driven overland flow concentrates along topographic lows during intense weathering of coastal basalt rock formations?

A)Accelerated gully and rill erosion
B)Formation of extensive barrier islands
C)Increased rates of chemical sedimentation
D)Stabilization of coastal dune systems

💡 Explanation

The combination of abundant water and preferential flow paths induce concentrated weathering, so increased shear stress encourages soil detachment, giving accelerated gully and rill channelization, because fluvial incision increases, therefore answer A; rather than barrier formation which requires sediment accretion.

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