Question

What is a mold cast fossil and how are they formed?

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Answer 1

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Step-by-step explanation:

What is a mold cast?:A cast or a mold fossil is an impression of a living organism.

How is it formed?: We find molds where an animal or plant was buried in mud or soft soil and decayed away, leaving behind an impression of their bodies, leaves, or flowers. Casts are formed when these impressions are filled with other types of sediment that form rocks, which take the place of the animal or plant.

Answer 2

Sometimes when an animal dies and its body decays, it can leave an imprint in the sediment. If this imprint fills in with minerals from sediment and groundwater, it can harden to form a fossil. This fossil is called a cast fossil. The fossilized imprint is called a mold fossil.