Answer
Clastic Sedimentary Rock
Explanation
Percy finds a rock in his backyard. It looks like several pebbles cemented together. Percy has found a clastic sedimentary rock. Clastic sedimentary rocks are made from automatic weathering trash. For example breccia, conglomerate, sandstone, siltstone, and shale. When diffused bodies hasten from the liquid, synthetic chemical rocks are formed. Another example, rock salt, iron ore, chert, flint, some dolomites, and some limestones. It is formed by pre-existing particles of rock.