Silk production involves the cultivation of 

A piece of fabric burns  by giving a smell of burning hair. It is made up of 

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

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

Cotton is mainly

The cocoons have to be stiffted to kill ________ inside. 

A big silk seed growing centre is at 

Which of the following produces silk?

Which of the following  fibres are made of proteins? 

Food for silk worms