Question

2. Answer the following questions,
a) Why did the need for man-made
materials arise ?
(b) Which are the natural materials
obtained from plants and
animals?
(d) Which natural materials are used
to obtain fibres?​

Answer 1

Answer:

mmmmmm......................

Explanation:

Answer 2

Answer:

follow me

a) Why did the need for man-made

materials arise ?

answer is -The main reason behind the need for man made materials arise is the increase in the population.

(b) Which are the natural materials

obtained from plants and

animals?

answer is -Wood (rattan, bamboo, bark, etc.) Natural fiber (silk, wool, cotton, flax, hemp, jute, kapok, kenaf, moss, etc.) Inorganic material. Stone (flint, granite, obsidian, sandstone, sand, gems, glass, etc.)

(d) Which natural materials are used

to obtain fibres?

answer is -Plant fibres include seed hairs, such as cotton; stem (or bast) fibres, such as flax and hemp;leaf fibres, such as sisal; and husk fibres, such as coconut. Animal fibres include wool, hair and secretions, such as silk.