Sedimentary rocks<span> are </span>formed<span> when </span>sediment<span> is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This </span>sediment<span> is often </span>formed<span> when weathering and erosion break down a </span>rock<span> into loose material in a source area. That is how they are formed, now think of a way they are not formed. Hope this helps!</span>