Which of the following is not a natural polymer? (1) Wool (2) Silk (3) Cotton (4) Teflon

Which of the following is not a natural polymer? (1) Wool (2) Silk (3) Cotton (4) Teflon
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(4) Teflon Explanation: Natural polymers occur in nature and can be extracted. They are often waterbased. Examples of naturally occurring polymers are silk, wool, DNA, cellulose, cotton and proteins.
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