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In 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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