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← GeographyWhich outcome results when thermokarst lake drainage accelerates?
A)Ecosystem carbon source increases✓
B)Albedo increases regionally
C)Regional subsidence rate lowers
D)Methane clathrate formation increases
💡 Explanation
Ecosystem release of carbon increases due to oxidation of newly exposed organic matter after thermokarst lake drainage occurring from thawing permafrost, which accelerates microbial decomposition; therefore, source increases, rather than decreasing or related mineral formation.
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