Question

Fill in the blanks with appropriate words.
(a) Synthetic fibres are also called __________ or __________ fibres.
(b) Synthetic fibres are synthesised from raw material called __________ .
(c) Like synthetic fibres, plastic is also a __________ .

NCERT Class VIII
Science - Main Course Book

Chapter 3. Synthetic Fibres and Prastics

Answer 1

The given blanks are filled as follows:

(a) Artificial or Man-made

- Synthetic fibres are not found in nature, they are made by artificial processes by humans, hence their name.

(b) Petrochemicals

- Petrochemicals are the substances which upon specific processing produces synthetic fibres

(c) Polymer

- Plastic is a polymer just like synthetic fibres.

Answer 2

(a) Synthetic fibres are also called man-made or artificial.

(b) Synthetic fibres are synthesised from raw material called petrochemicals.

(c) Like synthetic fibres, plastic is also a polymer.​