Mark the correct answer.Rayon is different from synthetic fibres because(a) it has a silk-like appearance(b) it is obtained from wood pulp(c) its fibres can also be woven like those of natural fibres.
Fill in the blanks with appropriate words:(a) Synthetic fibres are also called _____ or ____.(b) Synthetic fibres are synthesised from raw material called ______.(c) Like synthetic fibres, plastic is also a ______.
Categories the materials of the following products into 'can be recycled' and 'cannot be recycled': Telephone instruments, plastic toys, cooker handles, carry bags, ball point pens, plastic bowls, plastic covering on electrical wires, plastic chairs, electrical switches.
Match the terms of column I correctly with the phrases given in column II.Column I Column II(i) Polyester (a) Prepared by using wood pulp.(ii)Teflon (b) Used for making parachutes and stockings(iii) Rayon (c) Used to make non-stick cookware’s(iv) Nylon (d) Fabrics do not wrinkle easily
