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← ScienceWhich mechanism limits radio signal propagation through dense forests?
A)Vegetation-induced diffraction✓
B)Atmospheric absorption effects
C)Canopy depolarization losses
D)Foliage Faraday rotation
💡 Explanation
Vegetation diffracts radio waves due to varying refractive indices; the mechanism being vegetation-induced diffraction. This distorts and weakens signals because radio waves bend around obstacles, therefore limiting propagation, rather than being merely absorbed or rotated by the forest canopy.
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