1. Plastic 2
PLASTICS Plastics are man-made materials that can be shaped into almost any form. ... Most plastics are lightweight, flexible, durable and often colorful. ... The polymers in plastics are made up of small molecules called monomers. ... Generally, plastics can be classified as either thermoplastics or thermosetting plastics. ... However, as useful as they are, plastics do have drawbacks. ...
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- Approx Pages: 3