(1) Which material is used for making plugs, switches?
(2) Name the plastic used for making non-stick pans.
(3) Give one reason to support the use of teflon in non-stick pans.
(4). How is artificial silk made?
(5). Why nylon is used for making parachutes?
(6). Can bacteria break down plastics?
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Answer:
Explanation:
1. BAKELITE
2. TEFLON
3. TEFLONS HAVE VERY SMOOTH SURFACE AND IT DOESN'T ALLOW ANYTHING TO GET STICKED ON IT. THEREFORE IT IS USED IN NON STICK COOKWEAR.
4. ARTIFICIAL SILK IS MADE BY RAYON.
5. NYLON IS VERY STRETCHEBLE AND VERY STRONG AND LONG LASTING THAN ANY OTHER ARTIFICIAL FIBRE.
6. NEVER. BACTERIA DON'T HAVE CAPACITY OF BREAKING DOWN PLASTICS.
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