The hair of animals collectively called

Fleece of sheap is removed from its body during which of the following seasons?

Which of the following produces silk?

The wool  of sheep is removed only once a year before the  beginning  of 

Eggs of silk moth are called 

Which of the following  fibres are made of proteins? 

Food for silk worms 

After washing ________ is passed over the wool to  make it softer. 

The rearing of silkworms for obtaining silk is called 

Cotton is mainly