Which type of rock is formed from sediment and is associated with the formation of fossils?

Sedimentary rocks are formed from the accumulation and compaction of sediments, which can include particles of other rocks, minerals, and organic matter. These rocks often form in layers and are typically found in environments such as riverbeds, lakes, and oceans. One of the key features of sedimentary rocks is their ability to preserve fossils, as the conditions during the formation process allow for the remnants of once-living organisms to be trapped within the layers of sediment. Over time, these sediments solidify into rock, enveloping the fossils and protecting them from decay. In contrast, igneous rocks form from the cooling and solidification of molten material, metamorphic rocks arise from the transformation of existing rocks under heat and pressure, and volcanic refers to types of igneous rocks that originate from volcanic activity.