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← ScienceWhich consequence results when GPS satellite signal propagation near Earth causes noticeable effects?
A)Positional errors accumulate due to spacetime curvature✓
B)Signal attenuation increases signal-to-noise ratio
C)Doppler shift affects frequency calibration
D)Atmospheric refraction creates multipath interference
💡 Explanation
Positional errors accumulate because general relativity predicts spacetime curvature near massive bodies induces "gravitational time dilation", causing clock discrepancies on satellites relative to Earth. Therefore, errors increase from uncorrected relativistic effects, rather than purely atmospheric signal interference.
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