How do you organisms form carbon films A Organisms turn into rock
B Residues is left on rocks when organisms decay
C Hollow forms are left in sediment by decaying organisms
D Organisms leave evidence of their activities such as footprints

Hollow forms are left in sediment by decaying organisms

Explanation:

Carbon film fossils are formed from the carbon residue of a soft-bodied organism that has been buried in sediment.

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