1. Wool can be recycled or remanufactured
2. Polyester and nylon are natural fibres.
3. The commercial breeding of silkworms for their silk is called sericulture
4. Alpaca and Llama are a kind of sheep found in North America.
Answers
Answer:
1. Wool has been widely recycled for hundreds of years, in various forms: The closed loop system, a mechanical process that returns garments to the raw fibre state and makes it into yarn again, to produce new products (particularly suitable for wool knitwear).
2. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Answer: The fibres which are obtained from plants and animals are called natural fibres but those which are not obtained from these sources are called synthetic fibres. ... Synthetic fibres Nylon, polyester.
3. Sericulture, or silk farming, is the cultivation of silkworms to produce silk. Although there are several commercial species of silkworms, Bombyx mori (the caterpillar of the domestic silkmoth) is the most widely used and intensively studied silkworm.
4. Alpaca and Llama are a kind of sheep found in North America.
Although early writers compared llamas to sheep, their similarity to the camel was soon recognized. They were included in the genus Camelus along with alpaca in the Systema Naturae (1758) of Carl Linnaeus. They were, however, separated by Georges Cuvier in 1800 under the name of lama along with the guanaco.
Their faces are also dissimilar: alpacas have small, blunt faces with short ears, while llamas have more-elongated faces with banana-sized ears. Another key difference is their hair. Alpacas have shaggy hair that is used for fleece production. ... Llamas can be used as guard animals for livestock like alpacas and sheep
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