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Geography

Which soil change is amplified when decreased rainfall limits plant growth?

A)Increased concentration of heavy metals
B)Accelerated rate of soil erosion
C)Diminished soil horizon formation
D)Enhanced activity of soil microbes

💡 Explanation

Accelerated soil erosion occurs because without plant roots to stabilize the soil, bioturbation from burrowing animals mixes the layers and surface material is easily removed by wind and water, thus increasing soil loss rather than any other factor.

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