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Which mechanism reduces GPS accuracy near massive cliffs?

A)Gravitational time dilation accelerates clocks
B)Tropospheric refraction alters signal paths
C)Ionospheric scintillation causes phase shifts
D)Multipath interference creates signal overlap

💡 Explanation

Gravitational time dilation close to massive bodies affects atomic clock frequency because spacetime curvature is sensitive to local gravitational potential, therefore GPS timing precision diminishes, rather than atmospheric effects creating signal errors.

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