GEOLOGY

Detailed explanation-1: -Fossils are typically found in sedimentary rocks and occasionally some fine-grained, low-grade metamorphic rocks.

Detailed explanation-2: -In certain conditions, and over a very long period of time, sediment becomes compacted and cemented into sedimentary rock. Fossils are more common in some kinds of sedimentary rocks than others.

Detailed explanation-3: -Fossils rarely occur in metamorphic or igneous rocks. The heat and pressure required to change, or metamorphose, rocks usually destroys any fossils. However, special circumstances do happen. For example, fossilized shells and bacteria have been found in marble, which is metamorphosed limestone.

Detailed explanation-4: -Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.