Which risk increases within flood control channels constructed atop karst bedrock regions?

A)Increased channel bank sediment deposition

B)Ecosystem biodiversity decreases noticeably

C)Subsidence through suffosion sinkhole formation✓

D)Accelerated rates of chemical weathering

💡 Explanation

Subsidence vulnerability increases because concentrated water flow accelerates the Suffosion process removing fine particles through bedrock fissures, therefore resulting in sinkhole collapse rather than surface erosion, triggered even without extremely high water pressures.

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Which risk increases within flood control channels constructed atop karst bedrock regions?

💡 Explanation

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