1) What is the main difference between natural and synthetic materials? a) Natural materials come from nature, while synthetic materials are chemically processed. b) Natural materials and synthetic materials are both made in factories 2) Which of the following is a synthetic fiber? a) Cotton b) Nylon 3) What are synthetic fibers made of? a) Polymers (long chains of repeating chemical units) b) Pure natural substances without any chemical changes 4) Which type of fiber is regenerated a) Viscose b) Wool

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