Terrycot is made by mixing two types of fibres. Write the names of the fibres.

Cotton is a natural polymer. What is its chemical name?

A synthetic fiber which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?

Plastic articles are available in all possible shapes and sizes. Can you tell why?

Plastic is used for making a large variety of articles of daily use and these articles are very attractive. But it is advised to avoid the use of plastic as far as possible. Why?