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Which mechanism causes reduced wireless range in humid environments?

A)Water vapor absorption of signal
B)Increased atmospheric ionization
C)Constructive wave front interference
D)Reduced antenna impedance matching

💡 Explanation

Wireless range weakens due to water vapor absorption; signal energy turns partly into molecular kinetic energy. Because microwaves excite rotational modes of water, therefore absorption increases, rather than ionization that happens at high enough EM frequency conditions.

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