which is not a factor in a fossil organism being useful as an index fossil?

a. it must be limited to a short span of geologic time

b. it must be widespread geographically

c. it must have lived through a long span of time

d. it must be abundant

Respuesta :

Answer:

c. it must have lived through a long spam of time

Answer:

no.c ,my friend is the right answer

Explanation:

thanks for question

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