Question

name a man made fibre which is prepared without using natural raw materials

Answer 1

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Here's your answer :
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The answer is $Nylon$.
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Hope it helps.
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Answer 2

Due to the increasing population the conception of fibre and fibre made objects are also increasing highly.

To fulfill this demand the manufacturers are vastly manufacturing different artificial fibres which are very cheap and durable.

These artificial fibres are not made from any natural raw materials,these are completely synthesized in the laboratory.

Nylon is one of the most used artificial fibres which we synthesise artificially in the laboratory.