<span>Guyots are seamounts that have built above sea level. Erosion by waves destroyed the top of the seamount resulting in a flattened shape. Due to the movement of the ocean floor away from oceanic ridges, the sea floor gradually sinks and the flattened guyots are submerged to become undersea flat-topped peaks.</span>
That would be Pyroclastic material
The answer to your question is knowledge. Scientific knowledge is the information gathered by the systematic study of nature.
HI there
the most reasonable answer is
saturation of surface materials with water
hope this has helped you
<span>The
process that takes place at convergent boundaries by which one tectonic
plate moves under another tectonic plate and sinks into the mantle as
the plates converge is called SUBDUCTION</span>
