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Which set of substances is not used for making fibres?- Silk, chemicals
- Yak hair, camel hair
- Husk, bones
- Flax, wool
Correct answer: (c) Husk, bones
Explanation: Fibres are thread-like structures that are long, thin and flexible. These may be spun into yarns and then made into fabrics. Fibres cannot be obtained from the husks and bones of animals.
Extra information:
On the basis of their origin, fibres are classified as natural fibres and synthetic fibres.
Natural fibres- Natural fibres are the fibres that are obtained from plants, animals or mineral sources. Some examples are cotton, silk, wool etc.
Natural fibres can again be divided into two types -
a. Plant fibres- plant fibres are fibres that are derived from plants. Eg. Cotton and Jute.
b. Animal fibres- Animal fibres are fibres derived from animals. Eg. Silk is derived from cocoons of silkmoth and Wool is derived from hairs of sheep and goats.
Synthetic fibres- Synthetic fibres are man-made fibres designed to make fabrics.
Eg. Nylon and Rayon
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