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2007-03-25 21:52:01 · 3 answers · asked by J M 1 in Science & Mathematics Chemistry

3 answers

Good question, I guess it depends on there half life if they have one.

2007-03-25 22:16:22 · answer #1 · answered by Mr Hex Vision 7 · 0 0

Practically forever. Of course in every recycling process there are inevitable losses and wastage of material, and that's the origin of the practical limit.

2007-03-26 06:20:35 · answer #2 · answered by Ian I 4 · 0 0

till there are organic compounds on earth

2007-03-26 04:56:52 · answer #3 · answered by bullet 2 · 0 0

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