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← ScienceWhich consequence results when geomagnetic field variance exceeds threshold?
A)Increased satellite orbital atmospheric drag
B)Increased charged particle ring formation
C)Disrupted biological avian navigational abilities✓
D)Reduced atmospheric thermohaline salt stratification
💡 Explanation
Disrupted avian navigation occurs because **magnetoreception** depends on a predictably aligned magnetic field; significant geomagnetic variances impair navigation functions; therefore, migrations are impacted rather than atmospheric stratification because variance exceeds expected baseline.
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