jayjinks976
jayjinks976
17.11.2020 • 
Biology

Which characteristics of a fossil would make it useful as an index fossil in 1 point determining the relative age of widely separated rock layers?

a. a wide time range and a narrow geographic range

b. a wide time range and a wide geographic range

c. a narrow time range and wide geographic range

d. a narrow time range and a narrow geographic range

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