Question

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

Answer 1

Answer:

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

Answer 2

Answer:

no.c ,my friend is the right answer

Explanation:

thanks for question