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science10123
Question | Answer |
---|---|
the remains of a animal that lived long ago | fossil |
an orginism and the remaining | mold |
a fossil formed when dissolved minerals fill a hole | cast |
a fossil of an orginism that lived in a certain place | index fossil |
most fossils are found in a | sedimentary rock |
an organism walks in mud then it hardens into | a trace |
in a sedimentary rock which layer is the oldest | bottem |