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Probably copper, which was one of several elements known to prehistoric man, and can be found in free form. Carbon, as charcoal, might also qualify.

2006-11-27 11:59:56 · answer #1 · answered by Anonymous · 0 0

Hydrogen.
1000000% Sure!!! :)

2006-11-27 12:11:50 · answer #2 · answered by apolloK♫ 4 · 0 0

copper?

2006-11-27 12:04:40 · answer #3 · answered by Steve M 2 · 0 0

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