Q. 54.8( 4 Votes )
Wool fibre cannot be obtained from which of the following?
Moth is a type of insect which is responsible for production of silk fibre and not wool fibre. Wool can be obtained from rest of the given options by shearing. Shearing is the removal of hairs to obtain wool fibres.
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Write various steps for processing fibres into wool.NCERT - Exemplar Science
Various steps involved to obtain wool from fleece are given here.
(i) Picking out the burrs
(ii) Dyeing in various colours
Write the above steps in the correct sequence in which they are carried outNCERT - Exemplar Science
State whether the following statements are True or False. If false, correct them.
(a) Silkworms are caterpillars of silk moth.
(b) In India, camels and goats are generally reared for obtaining wool.
(c) The rearing of silkworms for obtaining silk is called silviculture.
(d) In the process of obtaining wool from fleece, sorting is done after scouring.
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Match the items of Column I with the items given in Column II.
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Selective breeding is a process ofNCERT - Exemplar Science
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Fill in the blanks in the following statements.
(a) _________ and _________ fibres are obtained from animals.
(b) Silk fibres come from _________ of silk _________.
(c) Wool yielding animals bear _________ on their body.
(d) Hair trap a lot of _________, which is a poor _________ of heat.NCERT - Exemplar Science
The general process that takes place at a sheep shearing shed isNCERT - Exemplar Science
Wool fibre cannot be obtained from which of the following?NCERT - Exemplar Science