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← GeographyWhich phenomenon primarily drives meromictic conditions in certain deep lakes?
A)Chemosynthetic bacterial stratification.✓
B)Excessive surface water evaporation.
C)Anthropogenic thermal pollution.
D)Widespread aquatic plant growth.
💡 Explanation
Chemosynthetic bacterial stratification prevents water mixing, leading to meromictic conditions because persistent density gradients inhibit regular seasonal overturn; therefore, deep layers remain anoxic rather than becoming oxygenated like holomictic lakes.
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