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Answers
Ans 1. The process of making yarn from fibers is called spinning. In this process, a mass of cotton wool are drawn out and twisted. This brings the fibers together to form yarn.
Ans 2. Natural fibres can be classified according to their origin. The vegetable, or cellulose-base, class includes such important fibres as cotton, flax, and jute. The animal, or protein-base, fibres include wool, mohair, and silk. An important fibre in the mineral class is asbestos.
Ans 3. The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. The fibers are first extracted by retting. The retting process consists of bundling jute stems together and immersing them in slow running water.
Ans 4. fibers that we get from plants and animals are called natural fiber . for example : jute,silk and wool etc. fibers that are made by humans or man made is called synthetic fiber . for example : rayon ,nylon and polyester etc.
Ans 5. Retting, process employing the action of bacteria and moisture on plants to dissolve or rot away much of the cellular tissues and gummy substances surrounding bast-fibre bundles, thus facilitating separation of the fibre from the stem. Basic methods include dew retting and water retting.
Ans 6. It's necessary to spin the fibers cause multiple fibers form a yarn and then many yarns form a cloth so if we pick single fiber we obviously can't wear it so even if u put many fibers together it's gonna get mingled and u ll form a yarn..
Ans 7. Jute is the second most important vegetable fiber after cotton due to its versatility. Jute is used chiefly to make cloth for wrapping bales of raw cotton, and to make sacks and coarse cloth.
Ans 8. The jute fiber comes from the stem and ribbon (outer skin) of the jute plant
Ans 10. We wear cotton clothes while working in the kitchen because cotton is a poor conductor of heat and electricity and if we wear synthetic clothes, the clothes will catch fire as synthetic is a good conductor of heat.