How do organisms form carbon films? Organisms turn into rock.
O Residue is left on rocks when organisms decay.
Hollow forms are left in sediment by decaying organisms.
O Organisms leave evidence of their activities, such as footprints.

When an organism is covered by sediment, it begins to decay. When decaying, the organisms release a gas. This process in turns leaves a thin film of carbon that preserves parts of the organisms.

Explanation:

the correct answer on edgen is:

(c.) prevent the spread of communism.

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industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations. click to let others know, how is it