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← ScienceWhich energy loss mechanism occurs during transmission of a radio wave through moist air?
A)Dielectric absorption creates molecular excitation✓
B)Faraday rotation alters the polarization
C)Diffraction bends around water droplets
D)Refraction focuses the wave's amplitude
💡 Explanation
Dielectric absorption is the process where water molecules absorb radio wave energy, because the oscillating electric field aligns water molecules then causes increased thermal vibration; therefore, signal power diminishes, rather than bending (diffraction) or polarization (Faraday rotation).
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