An earthquake occurred three hundred miles off the shoreline, and massive flooding occurred on land as a result. which best describes what occurred?

a. continental shifting resulted in a tsunami.
b. continental shifting resulted in a volcano erupting.
c. tidal activity in the subduction zone caused a tsunami.
d. tidal activity in the subduction zone caused a volcano to erupt.

The correct answer is (A)Continental shifting resulted in tsunami.

Continental shift is the movement of tectonic plates. Earthquakes and tsunami are caused as a result of this. A lateral slipping plate movement can result in earthquake because of the pressure and force formed by the collision of plates. Tsunami comes as a result of this continental shift, the effect of movement of tectonic plates can be observed miles away in the form of tsunami.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves