Polycot is obtained by mixing _________-

____________________ is a mixed fibre which is a blended fabric made of polyester and silk.

Which of the following is a animal fibre ?

Fibres made by blending natural fibres with synthetic fibres to obtain more superior and useful fibres are called ____________________.

Which of the the following is a man-made material?

________________  is a man-made fibre made from a natural material called cellulose.

Which of the following are correct ?

(a) We use many materials in our daily life. Some are made up of natural materials such as wood, cotton, stones and clay.

(b) A material can be used to make different kinds of things. For example: glass can be used to make bowls, tumblers, window panes etc.

Spandex is made up of synthetic polymer called as ______________________

Which of the following are correct ?

(a) The material may be artificially occurring or man - made. For example, wool, cotton, jute and marble are naturally occurring materials.

(b) Glass, paints, steel, cement, thermocole, plastic, nylon are man - made materials.

Who invented spandex ?