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Geography

Which outcome arises when volcanic ash deposition disrupts pedogenesis?

A)Accelerated chemical weathering
B)Formation of andisols
C)Decreased soil porosity
D)Stabilized organic matter content

💡 Explanation

Andisol formation occurs because significant volcanic ash input rapidly alters soil composition; therefore the distinct andic properties form, rather than the typical gradual horizon development associated with other forms of pedogenesis.

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