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Which consequence results when thawing collapses thermokarst lake shores?

A)Mobilization of dissolved organic carbon
B)Increased albedo and reflective cooling
C)Enhanced methane oxidation rates
D)Decreased nutrient availability in runoff

💡 Explanation

Thawing permafrost releases previously frozen organic matter; shoreline collapse accelerates *solifluction*, because rapid sediment input enriches dissolved organic carbon downstream, therefore increasing aquatic DOC rather than inhibiting oxidation or reflectivity.

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