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← GeographyWhich process primarily controls stratification within a deep meromictic lake?
A)Differential benthic decomposition rates
B)Seasonal shifts in inflow sediment load
C)Persistent density gradient driven by salinity✓
D)Variations in catchment basin evapotranspiration
💡 Explanation
When a meromictic lake is formed, a density gradient prevents mixing between layers because salinity differences establish a persistent stable stratification, inhibiting overturn. Therefore, density stratification, driven by salinity differences between layers, is the primary factor, rather than decomposition, sediment, or evapotranspiration which have secondary effects.
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