B2 6.1: the origins of the earth

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  • Created by: hev
  • Created on: 11-05-13 17:16

The definition of Fossils:   Are the preserved remains or traces of a dead organism

How Fossils can be formed:

1. Gradual replacement: When hard body parts. E.G. Bone and shells do not decay they compress and are replaced with minerals.

2. Another type of

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