Ask AI: what is a carbon film fossil? what is a cast fossil? hollow form solid copy provide evidence to prove your answer is right

A carbon film fossil is a preserved organism or impressions of an organism which are left in sedimentary rock. These fossils are formed when the remains of an organism are compressed by sediment (like mud or ash) and then covered in carbon. A cast fossil is formed when sediment fills in the detailed structures of plants or animals, forming an imprint in the sediment. These casts can form in any type of sediment and typically form when a hollow area has been filled with sediment. Cast fossils provide evidence of the organism's original structure and life form, which can help in determining species and evolutionary relationships.