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← ScienceWhich phenomenon causes signal attenuation as an electromagnetic wave propagates through damp soil?
A)Dielectric loss✓
B)Skin effect
C)Antenna impedance mismatch
D)Faraday rotation
💡 Explanation
Dielectric loss increases with soil moisture because water molecules absorb energy from the alternating electric field, inducing heat transfer rather than propagating the wave forward. Therefore, signal strength degrades, rather than reflecting or changing polarization.
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