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← GeographyWhich outcome occurs when a fjord's sill restricts deepwater exchange?
A)Progressively anoxic bottom water develops✓
B)Tidal amplification drastically decreases
C)Glacial calving rate will sharply rise
D)Sediment turbidites become well-sorted
💡 Explanation
Anoxic conditions develop due to density stratification preventing oxygen replenishment from surface waters; this stagnation results from limited Circulation Restriction because the sill impedes the water movement. Therefore, deoxygenation results rather than tidal effects or changed sedimentation.
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