Earth Science homeworkkk.?

H

heather

New member
Which characteristic of a fossil would make it useful as an index fossil in determing the relative age of widely sperated rock layers?

A. A narrow time range and a narrow geographic range...B. A wide time range and a narrow geographic range...C. A wide time range and a wide geographic range...D. A narrow time range and a wide geographic range

I think it's B. but I'm not totally sure.
 
Back
Top