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There is a phenomenon called silicified wood.
In the enormous years, the buried trees undergo materialistic are changed by the pressure from the stratum.
Gravity forces ground water containing silicic acid into the cellular tissue of the tree.
And it becomes silicified wood. Petrification of organic matter – This is another form of transformations.
I think that the bones in our bodies are also the materialistic transformation from the ocean with the passage of time.
Minerals that didn’t need to be stored in the sea had to be held in the body as bones in the process creatures change the living …