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← ScienceWhich mechanism influences GNSS (GPS) clock timings near massive structures?
A)Gravitational time dilation (curvature's effect)✓
B)Atmospheric refraction compensation fails
C)Signal multipath interference increases
D)Solar flare magnetic distortion amplification
💡 Explanation
Gravitational time dilation occurs because spacetime curvature near masses alters the rate time passes relative to more distant observers. Stronger gravitational fields slow time; therefore GNSS satellite clocks require continual adjustment for relativistic effects including curvature, rather than only altitude.
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