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Scrat [10]
3 years ago
7

If metal changes color overtime from exposure to air what has likely occured

Biology
2 answers:
djyliett [7]3 years ago
4 0
It would most likely be from Chemical Changes 
marishachu [46]3 years ago
3 0
Hello:)

When metal changes color over time it usually means it is rusting.

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