What has a strong effect on ground waves?
A)Refraction
B)Seawater
C)Changes in terrain
D)Seasonal changes

Question

Quizplus · Accepted Answer

Changes in terrain can have a strong effect on ground waves, as they can cause the wave to reflect, scatter, or diffract, resulting in changes to the direction, intensity, and polarization of the wave. Refraction (A) can also affect ground waves, but to a lesser extent, by bending the wave as it passes through different layers of the atmosphere. Seawater (B) can reflect, absorb, or refract radio waves, but its effect on ground waves is minimal, as these waves propagate through the soil layer beneath the water. Seasonal changes (D) may affect the absorption and reflection of radio waves in the atmosphere, but their effect on ground waves is negligible.

What Has a Strong Effect on Ground Waves