Why are few sedimentary rocks found deep in the Earth?

Few sedimentary rocks are found deep in the Earth because they typically form at or near the surface in environments like rivers, lakes, and oceans. Over time, tectonic processes such as subduction and continental collision can cause sedimentary rocks to be buried and metamorphosed, transforming them into metamorphic rocks at greater depths. Additionally, the conditions of high pressure and temperature in the Earth's interior are not conducive to the preservation of sedimentary structures and fossils typically found in these rocks.