Question

(d) polythene
(b) cotton gauze
(c) dried leaves
(d) nylon fishing
(d) sail of boats
(b) need lot of ironing
3. The material which is not biodegradable is :
(a) cardboard
4. Rayon fibres are used for making :
(a) undergarments (b) bedsheets
(c) parachutes
5. Synthetic fibres :
(a) have lustre
(c) do not get electrically charged
(d) absorb moisture
6. The process by which artificial fibres are made is called :
(a) polymerisation (b) plasticity
(c) elasticity
(d) none of these
7. A product formed by the combination of large number of monomers is called
(a) plastic
(b) polymer
(c) cotton
(d) none of these
8. A material which can be easily moulded into various forms is called :
(a) plastic
(b) wool
(c) cotton
(d) jute
9. Synthetic plastic materials obtained by gentle heating and moulding that cannot be reshapi
by gentle heating, is called :
(a) thermoplastic (b) thermosetting plastic (c) polypropene (d) all of these
10. A superior synthetic fibre made by the polymerisation of amide molecules obtained from
petroleum products is called :
(a) teflon
(b) nylon
(c) koroseal
(d) all of these​

Answer 1

Answer:

4.parachutes

I think it is correct

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Answer 2

Answer:4. parachutes

Explanation: