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← ScienceWhich consequence occurs in GPS satellites because altitude changes spacetime?
A)Clock drift relative to Earth✓
B)Signal interference from solar flares
C)Increased atmospheric drag on panels
D)Reduced gravitational attraction towards Earth
💡 Explanation
Differential time dilation, via general relativity, is the mechanism affecting satellite clocks. Increased altitude causes time to pass more quickly relative to Earth, because the spacetime curvature is reduced; therefore clock drift occurs, rather than the other atmospheric or gravitational disturbances.
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