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← GeographyWhich outcome occurs when soil invertebrate activity declines?
A)Reduced soil horizon mixing✓
B)Increased chemical weathering rate
C)Elevated regional erosion rate
D)Decreased carbon sequestration potential
💡 Explanation
Reduced soil invertebrate population lowers bioturbation rates; this leads to reduced mixing. Therefore, soil horizon development becomes more stratified, rather than more uniform, because mixing is primarily promoted through bioturbation in that biome.
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