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- Polymers: 1. Natural polymers have been cultivated by many cultures
Updated: 20 September 2007 - Polymers: 2. Uses and properties of synthetic polymers
Updated: 20 September 2007 - Polymers: 3. Plastics are synthetic polymers
Updated: 20 September 2007 - Polymers: 4. Synthetic polymers remain in the environment for a long time
Updated: 20 September 2007
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