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The hollow area left in a rock from a former organism is an:

original remains fossil
mold fossil
cast fossil
amber fossil

2 Answers

1 vote

Answer:

It's a mold fossil

Step-by-step explanation:

User Anabella
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It's a mold fossil, since the organism that was once inside decays and leaves that hollow area, like common ammonite fossils!
User MattEnth
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