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← ScienceIn GPS satellites, which mechanism causes clock drift?
A)Spacetime curvature effects✓
B)Atmospheric ionization variations
C)Component thermal expansion
D)Quantum entanglement influence
💡 Explanation
Relative to Earth, GPS satellites experience time dilation because of spacetime curvature, a consequence of their altitude and velocity; thus, atomic clocks onboard drift faster. This effect must be corrected, therefore clocks synchronize, rather than deviate more over time on Earth.
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