1) which layer is the oldest? a) 9 b) 2 c) 4 d) 1 2) which layer is the youngest? a) 9 b) 3 c) 1 d) 2 3) which fossil lived for the longest period of time? a) 1 b) 9 c) 2 d) 8 4) which fossil layer appears to have lived for a short period of time? a) 9 b) 2 c) 1 d) 3 5) A paleontologist is a person who studies... a) animals b) plants c) fossils d) nature

grade 4 fossils

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