Entrained grit in glaciers and rivers.
Sedimentary rocks generally wear away more easily than igneous rocks due to their composition and structure. They are often made up of softer minerals and have a layered, less cohesive structure, making them more susceptible to erosion and weathering. In contrast, igneous rocks, formed from cooled magma or lava, tend to be denser and harder, providing them with greater resistance to wear. Thus, sedimentary rocks typically erode at a faster rate than igneous rocks.
Igneous rocks can stick up above the ground due to processes like uplift and erosion. Uplift can lift rocks from beneath the surface to create mountains or hills, while erosion gradually wears away softer rocks to expose harder, more resistant igneous rocks at the surface.
Extrusive (volcanic) and exposed plutonic igneous rock.
wears them away
igneous rocks
When water wears away rocks underwater
sedimentary rock
Rhyolititcen rocks.
Igneous rocks are formed by the solidification of molten materials.
It wears away at rocks and monuements. :(
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
because it is made by heat and intence crushing and dimonds and marble are both made this way.