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q21)The process of keeping, feeding, breeding and medical care of useful animals is called rearing of animals. These animals produce one or more useful products for human beings.
q22)
Silk reeling is the process by which a number of cocoon baves are reeled together to produce a single thread. This is achieved by unwinding filaments collectively from a group of cooked cocoons at one end in a warm water bath and winding the resultant thread onto a fast moving reel.
q23)Caterpillars shed their skin when they grow bigger but humans do not. ... As their body grows, they have to move out of their skin because it becomes too tight for them. This process takes place 3 to 5 times in caterpillars till they are fully grown. In humans, skin cells also grow with the body.
q24)cut the wool off (a sheep or other animal).
q25)Shearing: The tleece of the sheep along with a thin layer of skin is removed from its body.
Scouring: The sheared skin with hair is thoroughly washed in tanks to remove grease, dust and dirt.
Sorting: The hairy skin is sent to a factory where hair of different textures are separated or sorted.
q26)Kashmir hand made pashmina shawl is 100% pashmina because the thread is hand spun, whereas machine made can be mixed easily with simple wool and acrylic. ... As the fibre diameter is very low, pashmina has to be hand-processed and woven into products such as shawls, scarves, wraps, throws, stoles, etc.
q27)The wool yielding animals have a thick coat of hair on their body to keep them warm during cold winter season. The hair (or wool) trap a lot of air. Air is a poor conductor of heat.
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