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Oceanic Trench
Deep, narrow depressions in the ocean floor, formed by the subduction of one tectonic plate beneath another.
Seismic-Reflection Profiling
A geophysical method for exploring Earth's subsurface by reflecting seismic waves off underground layers and interpreting the echoes received.
Sound Waves
Vibrations that travel through the air or another medium, perceivable as sounds when they reach a human or animal ear.
Continental Shelf
A submerged extension of a continent, ranging from the shoreline to a drop-off point known as the shelf break.
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