} }

Coal And Petroleum

Coal And Petroleum > Ask Question to Alfie
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Hi
Define manmade materials.
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cee
Man-made materials are materials obtained from natural materials through chemical processes. These materials are usually made using natural, and raw materials. Examples of man-made materials are glass, rayon, and nylon. paper, steel, synthetic rubber, polyester, wax paper, concrete, and silicone rubber, etc.
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