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← ScienceWhich phenomenon increases during radio-wave propagation in moist air?
A)Signal attenuation across longer distance✓
B)Refraction of signals towards higher altitudes
C)Constructive interference with surrounding waves
D)Increased signal penetration through obstacles
💡 Explanation
Signal attenuation increases due to absorption, which is a form of electromagnetic absorption, because water molecules absorb radio-wave energy converting it into heat, therefore the signal weakens, rather than penetrating better or interfering constructively.
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