Which process intensifies sediment transport when dune crest shearing increases?

💡 Explanation

Saltation bombardment propagates as the wind shear threshold is passed beyond the viscous sublayer. This is because increased wind energy enhances grain impact and splash, therefore saltation processes will propagate faster in the dunes, rather than weaker soil creep that mitigates it.

• Which outcome arises due to differential compaction within alluvial deposits overlying existing infrastructure?
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• Which outcome occurs when a meander stream encounters increased resistant bedrock?