Question

I. LONG ANSWER QUESTIONS
1. Explain the life cycle of a silk worm.
2. Define sericulture. Describe the process of rearing silk moths.
3. What is reeling? Describe the process.
4. Describe in short the six steps involved in wool production,
5. Describe the health hazards faced by workers during silk and wool rearing
SKILL BUILDERS
Let's Apply
. Woollen clothes are suitable for cold weather. Why do you think so?
Why are sheep fed on rich protein diet?
et's Think
hmere and Mohair are two varieties of wool obtained from goats. They are softer
I obtained from common breeds of sheep. Hence they are more expensive. How
produced by these goats is lesser than that obtained from sheep.
a's father is planning to start a business of wool production. He has a small fie
offor him?​

Answer 1

Explanation:

The silkworms shed their skin up to four times, or molt, as they continue to eat and grow. - After their final molt, the silkworm builds a cocoon around itself. The cocoon is a protective casing spun from silk. - Inside the cocoon, the silkworm changes into a pupa, the stage between larvae and adult moths

2) Sericulture: Rearing Of Silkworm To Produce Silk. Rearing of silkworm to produce raw silk is called sericulture. In this process, silkworms are reared at appropriate temperature and humidity to get silk threads from cocoons.

3) Reeling is the process of unwinding raw silk filament from the cocoon directly onto a holder. When several filament strands, either raw silk or synthetic, are combined and twisted together, producing yarn of a specified thickness, the process is called throwing.

4) The different processes involved in wool production are shearing, scouring, grading, dyeing, and drying. The process of removal of the fleece from an animal is called shearing. Sheep are usually shorn annually in the spring/summer months.

5) Some of the health hazards faced by wool industry workers are: 1. Respiratory diseases like asthma, bronchitis etc., are very common among these workers. .. Other health problems include headache, fever, back pain, neck pain etc.