Here's why:
* Abundance: Sedimentary rocks are formed from the accumulation and cementation of sediments, which are eroded from other rock types. This process leads to the formation of vast layers of sedimentary rock, making them the most abundant type on the Earth's surface.
* Surface Exposure: Igneous and metamorphic rocks often form deep underground and are only exposed through tectonic activity or erosion. Sedimentary rocks, however, are formed at or near the surface, making them more readily visible.
While sedimentary rocks cover the most surface area, it's important to remember that igneous rocks make up the majority of the Earth's crust by volume. This is because the majority of the Earth's crust is made up of the oceanic crust, which is primarily composed of basalt, an igneous rock.
