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Geography

Which long-term outcome affects biome distribution when volcanic tephra deposition exceeds pedogenesis?

A)Soil nutrient profile depletion
B)Accelerated chemical weathering rates
C)Enhanced soil carbon sequestration
D)Progressive soil horizon development

💡 Explanation

Deposition exceeding pedogenesis reduces essential nutrient profiles, because weathering releases nutrients from ash slower than plants uptake them, altering vegetation; therefore biome types distribution shifts, rather than an increase weathering, carbon sequestration, or developed horizons.

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