Silkworms are reared under suitable conditions of temperature and humidity to obtain silk threads from their ___.

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Solution

Silkworms are reared under suitable conditions of temperature and humidity to obtain silk threads from their cocoons. Before extraction of silk fibres, the cocoons are boiled in water. The thread gets loose and is then reeled in machines. From one cocoon 250-2500 meters of thread can be obtained.

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Similar questions

State whether the following statements are True or False. If false, correct them. [5 MARKS]
(a) Yak hair is not used to make woolen fabric.
(b) In the process of obtaining wool from fleece, sorting is done after scouring.
(c) The rearing of silkworms for obtaining silk is called silviculture.
(d) In India, camels and goats are generally reared for obtaining wool.
(e) Silkworms are caterpillars of the silk moth.

Question 1

The rearing of silkworms for obtaining silk is called
(a) cocoon
(b) silk
(c) sericulture
(d) silviculture

Q. The rearing of silkworm to obtain silk is called .

Q. Fill in the blanks:
1. Silk threads are made from a sticky secretion secreted by the ............................... of the silkworms.
2. The finest wool is obtained from ............................... silk moth.
3. The most common silk moth is ............................... silk moth.
4. The cocoons are put in ............................... to loosen the silk fibre.
5. ............................... and ............................... are animal fibres.

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