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← GeographyWhich outcome accelerates topsoil development via Antarctic cryoturbation?
A)Increased nitrogen fixation by cryofauna✓
B)Deposition of loess-derived nutrient material
C)Enhanced physical weathering from ice lenses
D)Greater chemical reaction kinetic rates
💡 Explanation
Increased nitrogen fixation results when cryofauna enhance topsoil development via bioturbation; this enhances nutrient mixing and availability needed by plants when seasonal melts occur because nutrients can be taken up easier, therefore enabling faster, rather than just physical changes from weathering.
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