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

The silk worm  is 

The rearing of silkworms for obtaining silk is called 

The most common variety of silk is 

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

Cotton is mainly

A female moth lays around ______ eggs in one go. 

Silk production involves the cultivation of 

Silk is mainly

The process of cleaning the fleece by using soap ( or detergent) and a lot of water so as to remove dust, dirt, and grease, etec is called