7. Describe three common properties of plastics with examples of how they are applied.
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Answer:
Plastics are generally low cost ,easy to manufacture, durable, strong for their weight electrically and thermally insulative.....
Plastics are used to make bicycle helmets, child safety seats, and airbags in automobiles ..........
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1. Plastic is a poor conductor of heat and electricity.
2. Plastic are non-biodegradable substance.
3. Plastic does not rust.
Explanation:
Eg. 1. Polyvinyle Chloride 2. Polypropylene 3. Polystyrene
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