What is the most common type of fossil?

Answer 1

Sea Shells.

Sea Shells have a hard calcium carbonate exterior, This hard shell is easily preserved. The sea shell can from molds, casts and even be mineralized. Almost all fossils are preserved because of water action and burial. Sea Shell are found in water so are commonly buried.

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Answer 2

Wesley Alvey

The most common type of fossil is the petrified fossil, which is formed when minerals replace organic material in the remains of an organism, creating a stone replica of the original structure.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.