Which is a trait of a index fossil ?

Found in a limited time span is the trait of an index fossils.

Explanation:

Index fossils are also called as guide fossils or indicator fossils. It is the most common fossils that have a limited time of period. They help to hide other, if a fossil from an unknown time is near a known time fossil, it can be considered that both species were formed around the same time.

In other words, it is a ancient remains of a plant or animal that lived during a specified geological time and that can be used to know the existing rock formations.

the answer is:

c. islam and christianity

explanation:

islam and christianity are widely practiced in africa. islam is practiced due to its spread from the middle east into africa, and christianity is practiced due to the colonization of africa by the british empire.

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