Answer the following questions in short:
1. What are the natural fibres?
2. Why wool regulates body's natural temperature?
3. Describe two properties of Angora and Cashmere.
4. What is sericulture?
5. Describe appearance and properties of silk fibre.
Answers
Explanation:
1....Natural fibers or natural fibres are fibers that are produced by plants, animals, and geological processes. They can be used as a component of composite materials, where the orientation of fibers impacts the properties. Natural fibers can also be matted into sheets to make paper or felt.
2....
regulates your body temperature the same way as it does on the sheep. As the body temperature rises the wool has the amazing ability to transfer heat and moisture along every fibre and release it into the cooler, drier environment, and when its cold it keeps the heat in.
3.......Angora fibre is also distinct from cashmere, which comes from the cashmere goat. Angora is known for its softness, thin fibres, and what knitters refer to as a halo (fluffiness). ... It is much warmer and lighter than wool due to the hollow core of the angora fibre. It also gives them their characteristic floating feel.
4.....the production of silk and the rearing of silkworms for this purpose.
5....Silk has a smooth, soft texture that is not slippery, unlike many synthetic fibers. Silk is one of the strongest natural fibers, but it loses up to 20% of its strength when wet. It has a good moisture regain of 11%. Its elasticity is moderate to poor: if elongated even a small amount, it remains stretched.
Answer:
i hope this help u
Explanation:
1, natural fibers are the prodects which we get from the living organism and plant
2,wool regulates body's natural temperature because it trapes the cold air in to the strips and gives us a warm temperature
3,angora and cashnere are only located in jamu and kashmir and they gives wool only for 1 time in a year
4,Sericulture, also called silk farming, is theprocess of making silk fibers. It starts by raising silkworms and then processing the fibers they produce. Silk fibers are combined into silk thread. The thread can then be twisted into silk yarn or woven into silk cloth (fabric).
5,Silk has a smooth, soft texture that is not slippery, unlike many synthetic fibers. Silk is one of the strongest natural fibers, but it loses up to 20% of its strength when wet. It has a good moisture regain of 11%. Its elasticity is moderate to poor: if elongated even a small amount, it remains stretched.