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← GeographyWhich process explains the formation of seasonal braided stream patterns in proglacial environments?
A)Permafrost degradation increasing channel sinuosity
B)Increased sediment discharge causing channel aggradation✓
C)Decreased vegetation cover reducing bank stability
D)Chemical weathering hardening channel banks
💡 Explanation
When glacier meltwater discharge increases seasonally, sediment transport capacity rises, because higher stream power causes channel aggradation and braiding. Therefore increased sediment discharge leads to braided streams in proglacial environments rather than permafrost melt, vegetation loss or bank hardening causing other channel patterns.
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