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← ScienceWhich mechanism causes signal degradation when radio waves propagate through foliage?
A)Radio Wave Attenuation✓
B)Constructive Wave Interference
C)Antenna Impedance Matching
D)Doppler Frequency Shift
💡 Explanation
Radio wave attenuation reduces wave intensity as it propagates, because foliage absorbs and scatters the wave's energy. Therefore, signal strength diminishes, rather than signal enhancement via interference or impedance issues that alter transmission but do not necessarily weaken a signal.
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